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Hacker One
Hacker One
added 2020/08/23 7:35 a.m.66 views

Yelp: Clickjacking lead to remove review

Steps To Reproduce: 1. Open iframe F960017 2. You can remove reviews from this iframe Impact Clickjacking lead to remove reviews...

3.8AI score
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Hacker One
Hacker One
added 2020/07/29 1:5 p.m.67 views

MTN Group: [mtn.com.af] Multiple vulnerabilities allow to Application level DoS

Issue Description Unauthenticated attackers can cause a denial of service resource consumption by using the large list of registered .js files from wp-includes/script-loader.php to construct a series of requests to load every file many times. The vulnerability is registered as CVE-2018-6389 76172...

5CVSS0.72671EPSS
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Hacker One
Hacker One
added 2020/05/18 7:58 p.m.66 views

Node.js third-party modules: [keyd] Prototype pollution

I would like to report a prototype pollution vulnerability in keyd module. It allows an attacker to inject properties on Object.prototype. Module module name: keyd version: 1.3.4 npm page: https://www.npmjs.com/package/keyd Module Description A small library for using and manipulating key paths i...

0.8AI score
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Hacker One
Hacker One
added 2020/05/03 6:50 a.m.66 views

Helium: unpermitted user can change the device name of admin account

Invited user with only the read-only permission can change the device name in admin account 1.create two account 'A 'and 'B ' in console.helium 2.Invited the account 'B' with 'A' by giving the read-only permission 3.In account 'B' trying to delete the organization created by admin account 'A' and...

2.2AI score
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Hacker One
Hacker One
added 2020/02/04 10:31 a.m.66 views

Visma Bug Bounty Program: Stored XSS in 'Notes'

A logged-in user can inject JavaScript code into a specifically crafted Note on a document, such as a Invoice, which will be executed when another user, logged in to the same company, edits the Note...

1.9AI score
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Hacker One
Hacker One
added 2020/01/29 4:12 a.m.66 views

X (Formerly Twitter): Twitter Source Label allow 'mongolian vowel separator' U+180E (app name)

Summary: Twitter app-names which are shown in the Tweet source label are supposed to be unique and because of that they must not include invisible unicode characters. However, you can use the mongolian vowel separator in these app-name, which allows to fake a app-name. Description: Every tweet ha...

6.6AI score
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Hacker One
Hacker One
added 2020/01/18 4:13 a.m.66 views

BlockDev Sp. Z o.o: xmlrpc.php FILE IS enable it will used for Bruteforce attack

xmlrpc.php FILE IS enable it will used for Bruteforce attack...

1.4AI score
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Hacker One
Hacker One
added 2019/09/29 6:51 p.m.66 views

Mail.ru: JMX RMI command injection on 195.211.131.82(Mail.ru Gaming)

Externally available Jolokia interface in Mail.Ru Gaming network allowed JMX RMI commands injection Сommand injection in Jolokia JMX. Reading the docs helps. A lot. Also, having good friends who can help you when you need it:...

2AI score
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Hacker One
Hacker One
added 2019/07/11 4:32 p.m.66 views

curl: Insecure Frame (External)

Summary: Insecure Frame External Steps To Reproduce: Vulnerability Details identified an external insecure or misconfigured iframe. Remedy Apply sandboxing in inline frame For untrusted content, avoid the usage of seamless attribute and allow-top-navigation, allow-popups and allow-scripts in...

7.3AI score
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Hacker One
Hacker One
added 2019/05/22 11:17 a.m.66 views

Flickr: Improper access control in place for "member only" groups via root.YUI_config.flickr.api.site_key

Researcher identified API endpoint that was not doing sufficient permission validation...

4.9AI score
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Hacker One
Hacker One
added 2019/05/17 4:21 p.m.66 views

Cuvva: Clickjacking in ops.cuvva.com

Hi, Description: Clickjacking User Interface redress attack, UI redress attack, UI redressing is a malicious technique of tricking a Web user into clicking on something different from what the user perceives they are clicking on, thus potentially revealing confidential information or taking contr...

6.6AI score
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Hacker One
Hacker One
added 2019/04/02 6:42 p.m.66 views

Mail.ru: SSRF

SSRF via URI injection in hou.my.com...

4.1AI score
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Hacker One
Hacker One
added 2018/12/14 11:42 a.m.66 views

Grammarly: Grammarly Keyboard for Android <4.1 leaks user input through logs (except for sensitive input fields)

@homelander identified that Grammarly for Android on Android 4.1 was leaking user-entered text to device logs. Currently, Grammarly for Android doesn't support devices with platform versions less than Android 5.0...

2.9AI score
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Hacker One
Hacker One
added 2018/11/29 9:50 p.m.66 views

Nextcloud: Expired reshare links allow access to all files in share

After a reshared subfolder link has expired, the link allows access to the full folder. I found the Problem in Nextcloud 14.0.3, but it still persists in 14.0.4 Steps: 1. share folder "A" with an nextcloud group 2. reshare a subfolder "B" of this folder with another user on this group in this cas...

5.5CVSS1.3AI score0.01036EPSS
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Hacker One
Hacker One
added 2018/11/26 4:2 a.m.67 views

Liberapay: Broken Authentication and session management OWASP A2

Hello @liberapay, Description: It seems now if attacker has csrf token & victim cookies then attacker can easily login to victim account without any login details. No need Of Any Username/Password Theory Proof-Of-Concept: - Go to https://liberapay.com/admin.101/edit/username any username/Self...

0.4AI score
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Hacker One
Hacker One
added 2018/08/20 12:14 a.m.66 views

Shopify: Unauthenticated access to Zendesk tickets through athena-flex-production.shopifycloud.com Okta bypass

Summary athena-flex-production.shopifycloud.com seems to be an internal system that Shopify uses because it redirects user to Okta login. During this however, I noticed that it first returns 200 and then does a redirect meaning some part of the website loads before redirecting. With this, I was...

6.9AI score
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Hacker One
Hacker One
added 2018/07/10 1:14 p.m.66 views

Starbucks: svcardproxydevus.starbucks.com Subdomain take over

You have left a dns record pointing to a dead cloudapp vm. svcardproxydevus.starbucks.com - s00307ntmp0svcardproxydev0.trafficmanager.net - s00307dpipsvcardproxy00.eastus.cloudapp.azure.com = Dead Impact 1 Attacker takes over subdomain and then puts something like porn or something that shouldn't...

0.3AI score
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Hacker One
Hacker One
added 2018/05/13 12:57 a.m.66 views

Valve: Malformed .BSP Access Violation in CS:GO can lead to Remote Code Execution

A malformed .BSP can trigger an Access Violation on CS:GO that can lead to arbitrary code execution on a remote computer. I have attached a copy of the malformed .BSP which reliably triggers an Access Violation on CS:GO. Impact An attacker hosting a malicious server could compromise a remote clie...

4AI score
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Hacker One
Hacker One
added 2018/05/11 12:42 p.m.66 views

HackerOne: Information disclosure

Summary: Chaining few simple informative issues on HackerOne platform and applying new method of timing attack, exploiting interesting feature in HTML5 https://developer.mozilla.org/en-US/docs/Web/API/ResourceTimingAPI/UsingtheResourceTimingAPI more precise Copy with CORSwe can perform low cost,...

7AI score
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Hacker One
Hacker One
added 2017/12/04 10:50 a.m.66 views

Mapbox: Admin Panel Accessed (OAuth Bypassed )

On December 4, 2017, @aneeskhan reported an authentication bypass vulnerability on a Mapbox internal portal. The vulnerability allowed them to bypass OAuth authentication and generate a valid session for the site. This session was then used by @aneeskhan to access information on the portal which...

7.1AI score
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Hacker One
Hacker One
added 2017/09/25 2:43 p.m.66 views

Instacart: Bruteforcing password reset tokens, could lead to account takeover

Hey Instacart security team, Description When resetting a new password on https://shoppers.instacart.com/password you will receive an email with a reset link. when clicking on this link. you go to this page: https://shoppers.instacart.com/password/edit?resetpasswordtoken=YourToken when entering a...

6.9AI score
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Hacker One
Hacker One
added 2017/09/20 3:20 p.m.66 views

Zomato: [www.zomato.com] IDOR - Leaking all Personal Details of all Zomato Users through an endpoint

Hacker is able to get the PIPersonal Information of any Zomato user...

6.9AI score
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Hacker One
Hacker One
added 2017/08/28 3:38 p.m.66 views

Legal Robot: Coding error !

here this is my mail id : [email protected] and pass : [email protected] i am able to set password as same as gmail address , but cant able to login , this was the issue here...

1.4AI score
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Hacker One
Hacker One
added 2017/04/19 10:30 a.m.66 views

Homebrew: Stack Trace on jenkins.brew.sh

221833 is not fully patched. Kindly take a look at https://jenkins.brew.sh/jacegisecuritycheck still stack traces are visible. Let me know if any further info required. Best Regards, MrR3boot...

1AI score
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Hacker One
Hacker One
added 2017/01/24 12:2 p.m.66 views

Boozt Fashion AB: Email spoofing at booztlet.com

Hello : This There is an Email Spoofing Vulnerability. Steps to reproduce: 1 Go to http://emkei.cz/ 2 Fill "From Email" field to [email protected] or any other booztlet email. 3 Fill the victim's address your address to "TO" field and fill in other details as you wish. You will receive email fro...

6.8AI score
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Hacker One
Hacker One
added 2016/12/11 3:49 p.m.66 views

Gratipay: Gratipay uses the random module's cryptographically insecure PRNG.

Dear Gratipay bug bounty team, Summary --- Gratipay currently uses the random module's pseudo-random number generator which is not a cryptographically secure PRNG as stated in the docs: The pseudo-random generators of this module should not be used for security purposes. For security or...

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Hacker One
Hacker One
added 2016/08/17 4:53 p.m.66 views

Instacart: API OAuth Public Key disclosure in mobile app

Our Android/iOS app can be decompiled and the OAuth Public token can be accessed. Contrary to Instacart's summary, the API private key is also leaked, allowing anyone to use Instacart's private API without restriction. Instacart which I have found to be great in general ignored my additional...

1.3AI score
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Hacker One
Hacker One
added 2016/07/26 4:12 p.m.66 views

Uber: Blind OOB XXE At "http://ubermovement.com/"

Test Summary : - POST data was set to &dtgmlf6ent; An HTTP request was initiated for the domain http://122.180.248.81/ which indicates that this script is vulnerable to XXE injection. NOTE : As it was Blind XXE Test I was Successful in Ping Test for XXE. But unable to retrieve any sensitive...

0.4AI score
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Hacker One
Hacker One
added 2016/06/12 6:4 p.m.66 views

Paragon Initiative Enterprises: SMTP server allows anonymous relay from internal addresses to internal addresses

Hello, Issue descripton your incoming SMTP servers, provided by google , seems to be accepting without authentication mails from addresses @paragonie.com and destined for addresses @paragonie.com. This can greatly ease spear-phishing attacks, as users usually put much trust into emails coming fro...

6.9AI score
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Hacker One
Hacker One
added 2015/11/07 7:43 p.m.66 views

Shopify: Apps can access 'channels' beta api

Hello, As documented here, an app can access to the following scopes : https://docs.shopify.com/api/authentication/oauthscopes. But an app can request/get access to a lots more scopes, and some of those scope shouldn't be accessible. PoC...

1.3AI score
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Hacker One
Hacker One
added 2015/05/13 12:0 a.m.66 views

Internet Bug Bounty: Improved fix for bug #69545 (Integer overflow in ftp_genlist() resulting in heap overflow)

https://bugs.php.net/bug.php?id=69545...

7.5CVSS9AI score0.16948EPSS
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Hacker One
Hacker One
added 2015/04/20 8:0 p.m.66 views

Shopify: amazon aws s3 bucket content is public :- http://shopify.com.s3.amazonaws.com/

An Amazon S3 bucket http://shopify.com.s3.amazonaws.com/ was unintentionally left with directory listing enabled. Even though the files in the bucket were all publicly accessible, it was not intended for the directory listing to be visible...

0.3AI score
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Hacker One
Hacker One
added 2014/04/17 8:0 p.m.66 views

Localize: Business logic Failure - Browser cache management and logout vulnerability.

Vulnerability class: Business logic Failure - Browser cache management and logout vulnerability. Vulnerability impact: Logging out from an application does not clear the browser cache of any sensitive information that have been stored. Steps to reproduce: 1. Login to portal. 2.browse few tabs 3...

1.6AI score
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Hacker One
Hacker One
added 2014/01/03 11:22 a.m.66 views

HackerOne: CSRF login

1 Attacker creates a fake account and changes e-mail 2 The e-mail confirmation link can now be used to CSRF login someone into the fake account, then monitor actions performed by the victim or even interact with him...

1.2AI score
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Hacker One
Hacker One
added 2025/09/17 7:53 p.m.65 views

curl: Security Analysis Report: CURL Integer Overflow Vulnerability

Vulnerability Overview Vulnerability Type: Integer Overflow in HTTP chunked encoding Location in Source: lib/httpchunks.c line 173 lib/curlx/strparse.c lines 185–186 Impact: Integer overflow leads to memory corruption Can cause buffer overflow Results in Denial of Service DoS for curl Potential...

6.9AI score
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Hacker One
Hacker One
added 2025/06/05 11:26 a.m.65 views

HackerOne: Account takeover of existing HackerOne accounts through SCIM provisioning

The SCIM provisioning feature in HackerOne's sandbox program was vulnerable to account takeover. An attacker could create a user with an email they controlled, import existing users, assign the victim account to the attacker's user, change the email parameter, and reset the password to gain acces...

7.5AI score
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Hacker One
Hacker One
added 2024/07/16 2:7 a.m.65 views

curl: CVE-2024-6874: macidn punycode buffer overread

The libcurl at commit 58772b0e082eda333e0a5fc8fb0bc7f17a3cd99c contained a stack-buffer overread in the function macidntoascii that could be triggered when the host of a URL was converted to punycode. The root cause was in the function uidnanameToASCIIUTF8, which left the output buffer unterminat...

4.3CVSS4.7AI score0.00786EPSS
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Hacker One
Hacker One
added 2024/07/12 2:41 p.m.65 views

Internet Bug Bounty: CVE-2024-3416: MTU of 4096 or greater without fragmentation may cause NGINX worker processes to leak previously freed memory

A vulnerability was discovered in NGINX Plus or NGINX OSS when configured to use the HTTP/3 QUIC module. If the network infrastructure supported a Maximum Transmission Unit MTU of 4096 or greater without fragmentation, undisclosed QUIC packets could cause NGINX worker processes to leak previously...

9.8CVSS7.6AI score0.00941EPSS
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Hacker One
Hacker One
added 2023/10/12 11:14 p.m.65 views

Shopify: IDOR on GraphQL queries BillingDocumentDownload and BillDetails

A vulnerability allowed unauthorized access to billing invoice information for other merchants...

6.8AI score
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Hacker One
Hacker One
added 2022/12/05 4:26 p.m.65 views

8x8: Unprotected Atlantis Server at https://152.70.█.█

Atlantis is an application for automating Terraform via pull requests. @shuvam321 reported to us an exposed Atlantis test server in our infrastructure. No sensitive information had been disclosed & we restricted access to the Atlantis service entirely, which resolved the issue...

1.1AI score
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Hacker One
Hacker One
added 2022/08/09 3:43 p.m.65 views

Internet Bug Bounty: CVE-2022-35948: CRLF Injection in Nodejs ‘undici’ via Content-Type

undici library should be protects HTTP headers from CRLF injection vulnerabilities. However, CRLF injection exists in the ‘content-type’ header of undici.request api. Impact = [email protected] users are vulnerable to CRLF Injection on headers when using unsanitized input as request headers, more...

5CVSS6.5AI score0.01227EPSS
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Hacker One
Hacker One
added 2022/06/08 11:34 p.m.65 views

Internet Bug Bounty: Read beyond bounds via ap_rwrite() [zhbug_httpd_47.2]

Greetings. I have found that aprwrite /server/protocol.c can cause a read beyond bounds with the extra data sent to an attacker. The bug is that aprwrite passes its |int nbyte| argument to bufferoutput, where bufferoutput's corresponding |len| argument isa |aprsizet|. Thus, a negative |nbyte| val...

5CVSS7.5AI score0.04722EPSS
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Hacker One
Hacker One
added 2022/04/29 10:55 p.m.65 views

U.S. Dept Of Defense: CVE-2020-3187 - Unauthenticated Arbitrary File Deletion

A vulnerability in the web services interface of Cisco Adaptive Security Appliance ASA Software and Cisco Firepower Threat Defense FTD Software could allow an unauthenticated, remote attacker to conduct directory traversal attacks and obtain read and delete access to sensitive files on a targeted...

7.5CVSS0.8AI score0.96595EPSS
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Hacker One
Hacker One
added 2021/12/02 8:56 p.m.66 views

Aiven Ltd: Zero day path traversal vulnerability in Grafana 8.x allows unauthenticated arbitrary local file read

Summary: Hi team, I've found a path traversal issue in the Grafana instances hosted on the Aiven platforms. With the path traversal it's possible for an unauthenticated user to read arbitrary files on the server. Steps To Reproduce: 1. Login at https://console.aiven.io 1. Create a new Grafana...

1.5AI score
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Hacker One
Hacker One
added 2021/11/15 9:46 a.m.65 views

8x8: 8x8pilot.com: Reflected XSS in Apache Tomcat /jsp-examples example directory

A single host in the pilot environment exposed the Apache Tomcat /jsp-examples example directory. The issue has been rectified, as we removed the directory from the host...

1.4AI score
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Hacker One
Hacker One
added 2021/08/06 5:29 p.m.65 views

Twitter Algorithmic Bias: Underrepresentation Bias through Twitter's Cropping Algorithm

Bounty Hunter Name: CyberQueenMeg About You: Megan, also known as CyberQueenMeg, is a passionate rising cybersecurity professional who is interested in programming, cybersecurity, and web development. Megan is a high school senior in a rigorous computer science program at her high school where sh...

6.8AI score
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Hacker One
Hacker One
added 2021/07/12 10:0 p.m.65 views

Shopify: Exposed Cortex API at https://cortex-ingest.shopifycloud.com/

Hi there, to be honest this is the first time I have seen this type of asset, but I think it is interesting/not supposed to be exposed. There is a Cortex metrics server running without authentication on https://cortex-ingest.shopifycloud.com/. This allows us to see the config for the server, call...

0.1AI score
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Hacker One
Hacker One
added 2021/07/09 8:33 p.m.65 views

Shopify: Blog posts atom feed of a store with password protection can be accessed by anyone

Hi shopify, DESCRIPTION I found a issue with blog posts atom feed of a shopify store. So without password we can't access the blog post atom feed at https://yourstore.myshopify.com/blogs/news.atom . But this can be bypass to access the atom feed of the blog posts. For example try out this. I have...

7AI score
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Hacker One
Hacker One
added 2021/06/12 4:15 a.m.65 views

Acronis: bypass sql injection #1109311

hello dear support i have found SQL injection and bypass this case 1109311 Tests performed: 0'XORifnow=sysdate,sleep15,0XOR'Z = 20.002 0'XORifnow=sysdate,sleep6,0XOR'Z = 7.282 0'XORifnow=sysdate,sleep0,0XOR'Z = 0.912 0'XORifnow=sysdate,sleep15,0XOR'Z = 16.553 0'XORifnow=sysdate,sleep3,0XOR'Z =...

0.1AI score
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Hacker One
Hacker One
added 2020/08/27 7:24 p.m.65 views

U.S. Dept Of Defense: IDOR to Account Takeover on https://████/index.html

Hello Team! Summary: I found when you wish to update your profile on https://███████/ after your login through https://██████████/signIn/signIn.html website due to an IDOR. This IDOR gives you the opportunity to change the origin email for the registered account by changing the ID parameter on th...

0.1AI score
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Total number of security vulnerabilities5000