Shopify: subdomain Takeover at blog.exchangemarketplace.com

Hi , I believe that exchangemarketplace.com is belong to shopify it was vulnerable to Subdomain Takeover so I takeover it to my shopify store Poc : goto blog.exchangemarketplace.com Suggested fix : clear your subdomain dns Impact Subdomain Takeover...

h1-5411-CTF: MemeCTF serial exploitation to local file read to Papertrail access via API-token leakage and more

Hi there dear CTF staff! First of all a huge thank you for the great challenge you put up! I've found it super exciting and the learning curve has been steep. For this case, I was first wondering if this is a part of the actual CTF, but after some inspecting, it surely doesn't seem so! I did even...

Brave Software: Field Day With Protocol Handlers

Summary ===================== When launching a protocol such as mailto:, SEARCH:, or bitcoin:, Brave only asks to allow the protocol to be opened by an external application. You can select on whether or not to remember the decision or not and to allow or deny it. The issue is that upon selecting...

h1-5411-CTF: H1-5411 CTF Writeup

So, Hackerone posted a tweet about the Meme CTF Where barcode was in the tweet image by scanning it and decoding from hex I found this link : https://h1-5411.h1ctf.com/ where we can create/generate a memes and for generating the meme this was used form GitHub which i found in source code analysis...

Brave Software: chrome://brave navigation from web

Summary: It's possible to navigate to the infamous 'chrome://brave' and all other privileged page from web, requiring only a single click. This is possible by opening popups with the 'noopener' attribute. Products affected: Brave: 0.24.0 V8: 6.9.427.23 rev: f657f15bf7e0e0c50a2b854c6b05edb59bfc556...

h1-5411-CTF: Remote Command Execution in a internal server to get the flag file

Summary: After source code disclosure using a LFI vulnerability and using PHP object injection with XXE I was able to find an internal service at port 1337. Using the SSRF through XXE I sent a HTTP request to this internal service and discovered a python object injection using status parameter,...

Shopify: PII disclosure -- Past team members & their email ID(personal email) can be viewed by Staff member with no permissions on Partner Dashboard

Hi, I'm not too sure if this is intentional and a expected feature or was it really an unnecessary information disclosure. If this is intentional, kindly close this as Informative or allow me to self-close so as not affect my signal. From my perspective, I noticed 2 issues, PART 1: Using Partners...

h1-5411-CTF: RCE via Local File Read -> php unserialization-> XXE -> unpickling

Summary: It was possible to escalate to Remote Code Execution via different bugs such as local file read, php object injection, XML External Entity and Un-Pickling of Python serialized object. Description: Using local file read it was discovered that the php code was vulnerable to php object...

Shopify: Stored xss

Description : WAF cut html tages but when put before tages we can bypass it : . Step to reproduce : 1-Open your store account 2-Navigate to https://xxx.myshopify.com/admin/settings/general 3-Put your street address xss payload xss" 4-Go to https://xxx.myshopify.com/admin/dashboards/live 5-XSS ale...

Chaturbate: Chaturbate "/chat_ignore_list/" endpoint does not check for Account status: Disabled before adding Ignore via POST

Summary Chaturbate.com provides the ability for its users when in chat to ignore other users in chat rooms via DM etc by adding their camhandle name to ignorelist via HUI Actually this is just a POST to /chatignorelist/ getting as a parameter the username which is the camhandle name in order to a...

Miniclip: xss in miniclip.com

I know this is out of scope but I thought maybe you would like to know about it. video attached Impact Steal session cookies, install keylogger etc etc...

Chaturbate: Missing CSRF Protection in /stats EndPoint.

EndPoint /affiliates/stats. doesnot verify the CSRF Tokens Steps To Reproduce: 1. Login with the your account 2. Navigate to the URL https://chaturbate.com/affiliates/stats.. 3. Check the stats in default its todays date or this week in select period. 4. Intercept the request and change the...

Node.js: Pull Request #12949 - Security Implications without CVE assignment

Summary: Pull Request 12949 has security implications but it was not assigned a CVE by the Node team. It is being reported by Qualys as a 6.8 severity issue without a CVE. Description: Here is the commit and pull request - https://github.com/nodejs/node/commit/010f864426...

h1-5411-CTF: CTF Writeup flag{cha1n1ng_bugs_f0r_fun_4nd_pr0f1t?_or_rep0rt_an_LF1}

We have attached the writeup, the CTF was solved by me and Chapuka. We would like to publish our writeup for the CTF in our blog, when can we do that? It was a great CTF, it's a shame we are not @Buenos Aires right now :/ Impact...

Slack: Linux Desktop application slack executable does not use pie / no ASLR

The slack binary from the Linux desktop application is no position independent executable: $ file usr/lib/slack/slack usr/lib/slack/slack: ELF 64-bit LSB executable, x86-64, version 1 SYSV, dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, for GNU/Linux 2.6.32, stripped pie executables...

Brave Software: RCE: DnDing shortcut files to chrome://brave allows loading HTML files in Muon's context

Summary: \395737 has shown that Brave supports chrome://brave/ URLs. The Brave team introduced a patch which blocks navigation to chrome://brave and removed chrome.remote.require to prevent command execution on the machine. Navigation to chrome://brave via shortcut files From my understanding: 1...

GitLab: [Admin Panel] CSRF to resume/pause runner

Hi, Just found a CSRF in admin panel of gitlab instance to pause/resume runner. Steps to reproduce - http://gitlabinstance/admin/runners/:runnerid/resume - http://gitlabinstance/admin/runners/:runnerid/pause Video: ███████ password: ██████████ Impact Just found a CSRF in admin panel of gitlab...

h1-5411-CTF: h1-5411-CTF report: LFI / Deserialization / XXE vulnerability,

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: h1-5411-ctf write-up The CTF...

h1-5411-CTF: Solution for h15411's CTF challenge

Baby steps Earlier today a friend tipped me off about an ongoing CTF challenge that was being run by HackerOne and would get the first ten winners a ticket to participate in h15411, which will be a live-hacking event happening in Buenos Aires. This immediately caught my attention and I decided to...

h1-5411-CTF: Flag WriteUp

Hello everyone , here is my writeup : Intro First I decoded the QR Code of the tweet , decoding to Here you go: 68747470733a2f2f68312d353431312e68316374662e636f6d . Decoding the hex value we get the challenge URL : https://h1-5411.h1ctf.com Path traversal + local file read On the website I found...

Brave Software: chrome://brave can still be navigated to, leading to RCE

Summary: 'chrome://brave' can be navigated to using the middle mouse click or normal click with CTRL held IFF coming from a bookmark. I am also using a small bug to actually trick a user into bookmarking our crafted URL through drag and drop. Products affected: Brave: 0.24.0 V8: 6.9.427.23 rev:...

QIWI: [*.rocketbank.ru] Web Cache Deception & XSS

Практически все сайты .rocketbank.ru, основанные на readymag.rocketbank.ru, уязвимы к Web Cache Deception и XSS. Пример запроса: http GET /?xx HTTP/1.1 Host: wknd.rocketbank.ru X-Forwarded-Host: cacheattack'"alertdocument.domain HTTP ответ: html alertdocument.domain/friends/" alertdocument.domain...

Upserve : Reflected xss on theacademy.upserve.com

Vulnerabilty Reflected xss in https://theacademy.upserve.com. STEPS TO REPRODUCE 1. Go to https://theacademy.upserve.com/playlists/all-videos/. 2. Click on any video to watch from the playlist and capture the request in burp. 3. you have to capture the request to...

h1-5411-CTF: H1-5411 CTF Write-up by erbbysam and ziot

@erbbysam and I recently set out to beat the latest CTF challenge hosted by HackerOne. Here is a write-up with the process we took from start to finish. The h1-5411 CTF begins with a tweet from HackerOne: https://twitter.com/Hacker0x01/status/1044974142150373378 F351665 This leads to a website...

h1-5411-CTF: flag{cha1n1ng_bugs_f0r_fun_4nd_pr0f1t?_or_rep0rt_an_LF1}

Got the flag: flagcha1n1ngbugsf0rfun4ndpr0f1t?orrep0rtanLF1 Will submit the writeup as soon as I finalize it. Impact -...

PayPal: IDOR to add secondary users in www.paypal.com/businessmanage/users/api/v1/users

PayPal Business Accounts allow account owners to create multiple secondary users with specific privileges assigned to their employees. This submission identified a method that made it possible for a Business Account owner to assign secondary users from other accounts. The new secondary user would...

New Relic: WordPress username enumeration (/author)

@rootbakar identified a previously-reported issue where authors could be viewed from an endpoint within our WordPress blog. As authors are intended to be public, this was closed as not having any security impact to the blog...

Shipt: Vulnerabilities in exported activity WebView

Hello, i want to report the vulnerability found, Since the following activity com.pushio.manager.iam.ui.PushIOMessageViewActivity has exported=true it can be exploited by 3rd parties. Vulnerability com.pushio.manager.iam.ui.PushIOMessageViewActivity has exported set to true making the activity...

Vanilla: Persistent XSS via Signatures

Description ----------- The current version of the signature plugin 1.6.1 is vulnerable to persistent XSS as the Format parameter is echoed without encoding. POC --- Prerequisite: Enable the Signatures plugin To place the payload, the following request can be used it's simply the request that is...

Shopify: Race condition at create new Location

User can bypas restriction and create more ctore location, than maximum depends store plan. Intercept request and send it multiple at once. See screensots F350687 - requests F350688 - results I created 12 store location when 4 possible Impact Bypass the limitations of the billing plan...

Semmle: Server side includes in https://lgtm-com.pentesting.semmle.net/internal_api/v0.2/savePublicInformation leads to 500 server error and D-DOS

Summary: Improper sanitizing of input in one of the input forms in https://lgtm-com.pentesting.semmle.net/internalapi/v0.2/savePublicInformation leads to server side include that causes a 500 internal server error and a possible denial of service. Description: After login in to semmle , in other ...

Dropbox: [www.dropboxforum.com] - reflected XSS in search

There was a reflected XSS in the search feature for www.dropboxforum.com...

Chaturbate: No rate limit in affiliate statsapi endpoint

Brute force at affiliate statsapi Steps To Reproduce: 1. The affiliate stats api link is vulnerable to brute force https:// chaturbate.com/affiliates/apistats/?username=hackeronetestchat&token=vulnerable I've used my profile and and my token to check brute force The correct token returned with 20...

Chaturbate: [chatws25.stream.highwebmedia.com] - Reflected XSS in c parameter

Hi Team, Found that chatws25.stream.highwebmedia.com is vulnerable to reflected XSS in c parameter, we can verify it with following URL, it is also a Cloudflare filter bypass: https://chatws25.stream.highwebmedia.com/ws/007/tgpraolp/htmlfile?c=███...

Chaturbate: Open redirect on chaturbate.com (tipping/purchase_success)

Hi, I would like to report an open redirect issue on https://chaturbate.com/ Description An attacker can redirect a user to any external website using the parameter prejoindata, this parameter seems to miss sanitization. Steps to Reproduce Visit the following url:...

Chaturbate: Reflected XSS on secure.chaturbate.com

The hacker found that an external asset used for fraud detection on secure.chaturbate.com was not sanitizing input parameters and could be used for reflected XSS. This external asset was removed...

Ruby on Rails: Untrusted strings that are cache fetched with raw option are automatically marshal loaded

This vulnerability effects application code that caches a string from an untrusted source using the raw: true option. For example, vulnerable application code might looks something like the following ruby body = Rails.cache.fetchkey, raw: true, expiresin: ttl do res = Net::HTTP.getresponseremoteu...

Mail.ru: Блокированный ящик ( Обход )

It was possible to bypass administrative lock for mailbox e.g. lock set by biz.mail.ru domain administrator by pre-requesting recovery link...

Dropbox: Stored XSS in dropboxforum.com

This report described a vulnerability where an attacker could put a specially crafted payload into the reply section of threads on dropboxforum.com to bypass the HTML filter on the site. This enabled a stored XSS attack against anyone viewing the message. This was an issue in Lithium forum...

8x8: CRLF injection agentcrm.8x8.com

The agent application was vulnerable to a response splitting attack when parsing line feed characters in a given URL...

8x8: Stored Cross Site Scripting.

Hellow team I got Stored based XSS on your web :D Here Is Step : 1. Go to https://www.easycontactnow.com/ 2. Click "Try For Free" Sign Up 3. It will told you "Enter your details to get started". So Enter your full name like : "alert1 Then put all the other details. 4. Then Confirm your id and...

HackerOne: Hacker can request mediation for published reports

Hi team, @jobert Summary: After creating the publish report, we do not have a field to send the requested meditation from HackerOne Support Description: Steps To Reproduce 1. Create publish report for any program ████████ 2. Use query https://hackerone.com/reports/numberpublishreport/hackerhelp M...

8x8: Hardcoded credentials in Android App

The mobile applications contained a URL that included credentials to a third party bug capture API. Access was restricted to pushing bug information...

8x8: XSS (Cross site scripting) on https://apimgr.8x8.com

The domain apimgr.8x8.com hosted an outdated version of WSO2 Data Analytics Server...

Khan Academy: Creating Unlimited Fake Accounts.

Hello @khanacademy, Anyone can create unlimited fake accounts using temp mails. i,e https://temp-mail.org/en/ 1- Go to https://temp-mail.org/en/ 2- Select an mail 3- Enter that mail while creating an account in khanacademy 4- You will get confirm mail from khanacademy on https://temp-mail.org/en/...

Internet Bug Bounty: XML hash collision DoS vulnerability in Python's xml.etree module

Python's standard library uses libexpat to parse XML. Internally the expat library has a hash table implementation to efficiently store and lookup DTD elements like entities, elements, attributes, etc. Hash tables are potentially vulnerable to hash collision Denial-of-Service attacks, which turns...

Chaturbate: No rate limit in stats api token endpoint

Brute force on statsapi endpoint to view stats of an user Steps To Reproduce: 1. Stats api token can be generated at https://chaturbate.com/statsapi/authtoken/ https://chaturbate.com/statsapi/?username=hackeronetestchat&token=vulnerable I've used my profile and and my token to check brute force T...

Grammarly: Permissive CORS policy trusting arbitrary extensions origin

@foobar7 identified that misconfigurations in CORS and CSRF handling allowed malicious browser extensions, which have permission to interact with grammarly.com domain, to impersonate the user. The vulnerability was resolved with improved CSRF/CORS handling...

Starbucks: China - ecjobsdc.starbucks.com.cn html/shtml file upload vulnerability

1, Summary During the test, I found ecjobsdc.starbucks.com.cn this site has an upload vulnerability, you can upload html and shtml format files, so you can read the server's intranet IP, the physical address of the website application and read the website web.config file. 2, Vulnerability scope...

HackerOne: User with privilege to maintain External Programs can update certain churned HackerOne programs

Summary: You wrote that some programs are behind, but you are trying to get them back sorry maybe bad translation Description: Apparently because of a system error, I have access to change information in the public program. This option is given only for external programs.But here is a public...