Shopify: POST-based XSS on apps.shopify.com

Hello Shopify team! I found a post-based XSS which may be shared to other users and occurs in firefox, IE, Edge. How to reproduce: 1. at partners.shopify.com go to apps - choose one - more actions - create shopify app store listing 2. you will get redirected to url with ?signature parameter. Full...

OLX: XSS Reflected at SEARCH >>

I have Found XSS payload avaliable at GET Request.. Live PoC URL:...

Shopify: Reverse Proxy misroute leading to steal X-Shopify-Access-Token header

Hello Shopify team! I found out that on /admin/api/graphql endpoint server fetches content of Host header value $HTTPHost + /admin/api/graphql. If my own host was sent to server, request comes from ██████████or ██████████ your google cloud cluster. Also I can grab all reverse proxy headers...

Chaturbate: Stored XSS in chat topic due to insecure emoticon parsing on any message type

Description The funcitonality for adding emoticons into the chat from the serverside perspective is based on a string in the following format: %%%emoticon NAME|EMOTICONURL|WIDTH|HEIGHT|REPORTURL%%% The EMOTICONURL must conform to the following regex: javascript...

HackerOne: Race condition in performing retest allows duplicated payments

Summary There exists a race condition in performing retests. By executing multiple requests to confirm a retest at the same time, a malicious user is paid multiple times for the retest. This allows for stealing money from HackerOne, which could go unnoticed by both HackerOne and the attacker me...

U.S. Dept Of Defense: Access to all █████████ files, including CAC authentication bypass

Summary: Due to an Insecure Direct Object Reference IDOR in adding recipients to a shared package on ██████████, an unauthenticated attacker can access all files uploaded to ████. As described on ██████████ website, this includes documents with classifications up to FOUO, including PII / PHI...

U.S. Dept Of Defense: Admin panel take over | User info leakage | Mass Comprimise

NOTE! Thanks for submitting a report! Please replace all the square sections below with the pertinent details. Remember, the more detail you provide, the easier it is for us to triage and respond quickly, so be sure to take your time filling out the report! Summary: add summary of the vulnerabili...

Nextcloud: Gallery: No feedback for invalid password

CVSS ---- Low 3.1 CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N Description ----------- The Gallery plugin does not inform a user when password-protecting a file failed in combination with the Password Policy plugin. Because of this, files that the user will rightfully assume to be...

Mail.ru: CSRF on draft message creation in tel.mail.ru

CSRF allowed to save message draft with attacker controlled content...

WordPress: CSRF to HTML Injection in Comments

Simon discovered a CSRF vulnerability that led to RCE. More details are available on the RIPS blog...

Nextcloud: Talk / spreed: Disclosure of Room names and participants for password protected rooms

CVSS ---- 5.3 Medium CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N CVSS isn't always as fine-grained as I'd like; personally, I would rate the issue somewhere between low and medium Description ----------- The API of the official spreed/talk extension reveals potentially sensitive information such...

Nextcloud: Server-Side request forgery in New-Subscription feature of the calendar app

CVSS ---- 8.5 High CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N Description ----------- The "New Subscription" functionality of the official Calendar app allows authenticated users to direct the server to perform arbitrary external requests, and then displays the full response to the user. The...

HackerOne: Proper verification is not done before sending invitations to researchers for certain private programs with rules e.g. "Participants must be US-based"

Hi, I would like to report something I just recently noticed upon receiving an automated invite from Hackerone for a private program. The program brief clearly states the following in program rules: █████ This is where I believe the issue is. I live in ███ and according to the program rules I...

New Relic: Swiftype key stored in JavaScript source

Hi, I am surfing on the newrelic website. I found a sensitive data including authentication key written in public accessible javascript file. Some 3rd party solution SwiftType newrelic using for crawling or search/suggestion. below is the link where you can find the authkey. which would be able t...

Mail.ru: Server side request forgery

SSRF in eu.portal.sf.my.com allowed to proxy request to another host...

Keybase: Linux privilege escalation via trusted $PATH in keybase-redirector

keybase-redirector is a setuid root binary. keybase-redirector calls the fusermount binary using a relative path and the application trusts the value of $PATH. This allows a local, unprivileged user to trick the application to executing a custom fusermount binary as root. Environment CentOS Linux...

Chaturbate: Missing Rate Limitation at /photo_videos/photoset/create

Hello,I discovered that one is able to create an unlimited number of albums Via /photovideos/photoset/create/ Steps To Reproduce: 1.Login And Go to http://fr.chaturbate.co /photovideos/photoset/create/ 2.Fill the form 3.Enable a proxy interception tool e.g Burp Suite 4.Click Save 5.Send the POST...

DuckDuckGo: DOM XSS on 50x.html page on proxy.duckduckgo.com

Hi, I read the report about DOM XSS on 50x.html page https://hackerone.com/reports/405191. I decided to check some other subdomains to be sure. This link still executes javascript: https://proxy.duckduckgo.com/50x.html?e=&atb=test%22/%3E%3Cimg%20src=x%20onerror=alert%27test%27;%3E The following...

Mail.ru: [screenshot.mail.ru] CRLF Injection

CRLF injection in screenshot.mail.ru allowed to manipulate response headers...

Zomato: [www.zomato.com] CORS Misconfiguration, could lead to disclosure of sensitive information

Summary: Cross Origin Resource Sharing Misconfiguration | Lead to sensitive information. Description: An HTML5 cross-origin resource sharing CORS policy controls whether and how content running on other domains can perform two-way interaction with the domain that publishes the policy. The policy ...

X (Formerly Twitter): CORS misconfig | Account Takeover

Summary: CORS misconfig is found on niche.co as Access-Control-Allow-Origin is dynamically fetched from client Origin header with credential true and different methods are enabled as well. Description: Basically, the application was only checking whether "//niche.co" was in the Origin header, tha...

Shopify: Disclosure of Github Issues

About 5 mins ago a new website was just registered by Shopify. https://github-issues-tracker.shopifycloud.com/. This contains title of all the internal github issues that Shopify currently has. I wanted to let you know right away of this as soon as I saw it. I am testing this further to get more...

Gatecoin: API request signature can be reused with other parameters/data than the original in certain cases

If an attacker can intercept/see an API-request from a client who has a system-clock that is slightly ahead of the server time then the attacker can re-use the API request-signature towards the same URL but with a different payload. This can for some of the endpoint lead to serious vulnerabilitie...

PayPal: XSS [flow] - on www.paypal.com/paypalme/my/landing (requires user interaction)

Steps to reproduce On Chrome and Firefox: 1. Go to...

Chaturbate: Stored XSS on chaturbate.com (wish list)

Hi, I found a stored XSS on chaturbate.com Description The input wishlist in the bio of a user allows him/her to enter CSS properties, however some browsers like Opera or Internet Explorer are vulnerable to XSS through the attribute style. request http POST /accounts/editbio/ HTTP/1.1 Host:...

Mail.ru: Apache server-info enabled

Apache server-info was available on cn-stat.ext.terrhq.ru host...

Shopify: Subdomain Takeover Via unclaimed Heroku Instance tim-exclusive.shopify.com

Good day, I truly hope it treats you great on your side of the screen : I have found that your website tim-exclusive.shopify.com is pointed via a cname to an unclaimed Heroku Instance This was not registered on Heroku. I was able to take over the domain: See my POC Pug of Concept...

Internet Bug Bounty: Integer overflow leading to buffer overflow

There exists an integer overflow in Perlmysetenv @ util.c : 2070 2070: void PerlmysetenvpTHX const char nam, const char val ... 2166: const int nlen = strlennam; ... 2171: vlen = strlenval; 2172: newenv = charsafesysmallocnlen + vlen + 2 sizeofchar; Here in a 64 bit version of Perl, since the...

PayPal: [PayPal Android] Remote theft of user session using push_notification_webview deeplink

A deeplink feature built into the PayPal Android application failed to validate the requested endpoint. A specifically crafted request from a website or separate app on the device could call the deeplink and direct traffic to any destination. While the impact was limited by compensating controls,...

Mail.ru: ******.*****.my.com open proxy

A proxy host in my.com domain related to partner service located in external network was misconfigured as an open proxy...

Zendesk: CSRF on developer.zendesk.com via Cache Deception

October 2018 - It was found under certain circumstances when arbitrary files were requested the response would be cached leading to leakage of a CSRF token. The scope of this was limited to developer.zendesk.com. We appreciate the great submission and work from @imran1121!...

Chaturbate: Passive stored XSS at broadcast room

The hacker found that a specially crafted app names could insert a small amount of data into an A tag's href in the "Broadcaster is running these apps: " chat text. Because of the character limit this required multiple successive clicks on different app names, and in the example utilised the room...

Rockstar Games: Found CSRF Vulnerability in https://support.rockstargames.com/

In this report, the researcher found a CSRF vulnerability that potentially allowed an attacker to spam false support requests. This issue was resolved in a site update...

Shopify: H1514 Wholesale customer without checkout permission can complete purchases

Summary: By default, Shopify Wholesale customers are prevented from immediately checking out: F360280 Instead, a store admin must approve each order before the customer can pay. This restriction can be bypassed, allowing a customer to check out orders without prior approval. This also bypasses an...

Shopify: H1514 Server Side Template Injection in Return Magic email templates?

Summary: Possible template injection in return magic email templates. Description: I've been playing with return magic workflow email templates and there seems to be some kinda of template injection but I am not sure if it's exploitable or even valid. Here is why I think it could be vulnerable: I...

Shopify: H1514 Extract information about other sites (new sites) through Affiliate/Referral pages

NOTE! Thanks for submitting a report! Please replace all the square sections below with the pertinent details. Remember, the more detail you provide, the easier it is for us to triage and respond quickly, so be sure to take your time filling out the report! Summary: This bug is based on a really...

Shopify: H1514 Bypass Wholesale account signup restrictions

Summary: By default, account registration is disabled on Shopify Wholesale, requiring customers to be manually invited: Wholesale account signup is disabled. Customers need to be manually invited from the Customers page. This can be bypassed due to improper access controls in the invitation...

Shopify: H1514 Ability to MiTM Shopify PoS Session to Takeover Communications

Hi @iv-rodriguez, After a decent amount more digging and research, I must disagree with you on the "expecting to work offline" portion. The code actually specifically listens on all local interfaces 0.0.0.0 and the wifi network address is specifically used in the QR code connection string, as sho...

Shopify: H1514 Stored XSS on Wholesale sales channel allows cross-organization data leakage

Summary: There exists a stored XSS vulnerability via the Wholesale sales channel at https://wholesale.shopifyapps.com. This allows an attacker who shares one shop with an account owner to access the Wholesale sales channel of any shop belonging to the owner. Steps To Reproduce: 1. Visit...

Shopify: H1514 Shopify API ruby SDK session setup lacks input validation, resulting in SSRF and leakage of client secret

Hi team, The Shopify API ruby SDK has the ability for the developer to interact with their shop's REST API. When setting up the gem, a code structure similar to the one below may be used to set up the connection: ruby require 'shopifyapi' class SomeController ' session =...

Shopify: H1514 Get access to non public information by pivoting with graphql queries

Hi security team, Summary: It is possible to pivot with queries to get access to information you shouldn't have access to according to docs located at https://help.shopify.com/en/api/graphql-admin-api/reference/queryroot Description: I will try to write up all the ones I can find related to...

Tor: Email Spoofing Possible on torproject.org Email Domain

Summary: Due to a missing SPF and DMARC record it is possible to spoof emails from torproject.org. This could potentially be used to trick employees or users via phishing emails. Description: Mail servers rely on both SPF and DMARC to properly deal with email spoofing. SPF shows what servers are...

Starbucks: Sidekiq web UI (Ruby background processing) accessible unauthenticated via https://gift-test.starbucks.co.jp/sidekiq/busy

Summary: I found the following URL, which appears to be running an Sidekiq web UI instance that is accessible unauthenticated: https://gift-test.starbucks.co.jp/sidekiq/busy Description: Sidekiq is used for Ruby background processing as I've learned, I'm not really familiar with it. The web UI ca...

Starbucks: China - president-starbucks.com.cn DNS configuration reported as takeover

k3mlol discovered that president-starbucks.com.cn was displaying Chinese gambling content, reporting it as a takeover. It was ultimately determined to be a released resource, no longer owned by Starbucks. This report was awarded a bounty in error; Future reports against this domain would not...

Shopify: H1514 DOM XSS on checkout.shopify.com via postMessage handler on /:id/sandbox/google_maps

Description: The /:id/sandbox/googlemaps and /:id/sandbox/googleautocomplete routes on checkout.shopify.com are used to render the Google Map on the "Order Status" page as well as the address prediction on checkout pages. The page performs origin validation on incoming postMessages making sure th...

Shopify: H1514 Ability to Edit Packaging Slip Templates and View Product & Shipping Information by a low privileged staff in a Sandbox Store

Hello, It was observed that it is possible to edit packaging slip templates and then view the product and shipping information in the packaging slip by a low privileged staff in a sandbox store by simply navigating to the URL https://.myshopify.com/admin/settings/packingsliptemplate. It appears...

Shopify: H1514 Session Fixation on multiple shopify-built apps on *.shopifycloud.com and *.shopifyapps.com

Hi team!, I'm reporting a Session Fixation issue on multiple shopify-built apps hosted on .shopifycloud.com and .shopifyapps.com. Normally Session Fixation is boring but I discovered a way to simply use by-design XSS to authenticate as a user on those affected apps. Details As the policy pointed...

U.S. Dept Of Defense: Unencrypted __VIEWSTATE parameter in a DoD website

Hi there i realise that the information passing to the server in the subdomain http://████████ can be seen without any encryption thought the VIEWSTATE Parameter. To reduce the change of someone interception the information the parameter should be encrypted due to the sensivity of the information...

HackerOne: Improper UUID validation results in bypass of #419896

This was found while evaluating the vulnerability and patch identified in 419896. I determined the deployed patch to be effective. However, I noticed tracer values could be sent which didn't conform to the UUID specification as characters outside of the a-f and 0-9 ranges could be used. For...

Discourse: Account takeover at https://try.discourse.org due to no CSRF protection in connecting Yahoo account

Hi There is an option in https://try.discourse.org/u/testh1ay/preferences/account to connect our Yahoo account. I noticed Connect Yahoo account option have the workflow with GET method and there is lack of csrf protection on connecting yahoo account which can help attacker into inducing victim to...