Sifchain: Clickjacking

Bug Bounty ReportVulnerability Report Vulnerability Name: UI Redressing Clickjacking Vulnerability Description: Clickjacking classified as a User Interface redress attack, UI redress attack, UI redressing is a malicious technique of tricking a user into clicking on something different from what t...

GitLab: Stored XSS in custom emoji

Summary I found Stored XSS with a feature of custom emoji. This feature hasn't been rolled out yet and need to set feature flags in self management installation. https://gitlab.com/gitlab-org/gitlab/-/issues/231317 The problem is the code here...

Nextcloud: index.php/apps/files_sharing/shareinfo endpoint is not properly protected

When federated shares between two Nextclouds are created they do not use standard webdav to communciate. But to obtain the filelist they seem to use the SERVER/index.php/apps/filessharing/shareinfo endpoint. Unlike the other endpoint for tokens like public link shares. There is no brute force...

Shopify: Stored XSS in /admin/product and /admin/collections

Hello Security Team, I was going through previous reports of XSS and I have found this, https://hackerone.com/reports/978125 As stated by team on this page even on https://hackerone.com/shopify?type=team under Known issues that we can now report XSS under Rich Text Editor on Product description a...

GitLab: Arbitrary file read during project import

NOTE! Thanks for submitting a report! Please replace all the parenthesized 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 A mis-usage of json sche...

8x8: DNS Misconfiguration (Subdomain Takeover) ███.wavecell.com

An S3 bucket was deleted, but a DNS record pointing to the bucket was initially not updated/removed. The issue has been rectified...

BlockDev Sp. Z o.o: xmlrpc.php FILE IS enabled it will used for Bruteforce attack and Denial of Service(DoS)

xmlrpc.php file is visible...

Palo Alto Software: [Bypass #870709] Unauthorised access to pagespeed global admin at https://webtools.paloalto.com/

Hi team, I found bypass of report 870709. Just by using X-Forwarded-For: 127.0.0.1 you can again get access to global admin page. Bypass request Request GET /pagespeed-global-admin/ HTTP/1.1 Host: webtools.paloalto.com X-Forwarded-For: 127.0.0.1...

Automattic: [intensedebate.com] SQL Injection Time Based On /js/commentAction/

intensedebate.com SQLi Time Based On /js/commentAction/ Summary: Hello, I have found a SQLI Injection Time Based on /js/commentAction/. When a user want to submit/reply to a comment, a JSON payload was send by a GET request. GET...

BugPoC: Reflected XSS at wacky.buggywebsite.com/frame.html

Summary: I solved that CTF to pop alert1 Steps To Reproduce: https://bugpoc.com/pocbp-HoQPW64U PoC ID: bp-HoQPW64U Password: AptBeAGlE03 Supporting Material/References: https://imgur.com/a/ZD7rOvH attachment / reference Impact General XSS impacts. Also, I mistakely used document.domain instead of...

Shopify: authenticity token not verfied leads to change business name

Hello security team , while sign up I have noticed that authenticity token is not verified leads to change info like business name Steps to reproduce 1- visit this url https://www.shopify.com/partners and add you mail then click on join now 2- Then fill out your data and click on create new partn...

Staging.every.org: Race Condition when following a user

Summary: Hi team, There is a race condition vulnerability when following a user. If you send the Follow requests asynchronously, you can follow a user multiple times instead getting an error message. I've been using Turbo Intruder extension at Burp Suite for trying Race Condition attacks. I can...

Node.js third-party modules: Server-side Template Injection in lodash.js

I would like to report Server-side Template Injection in lodash.js .template function It allows the execution of code on the server Module module name: lodash version: 4.17.15 npm page: https://www.npmjs.com/package/lodash Module Description The Lodash library exported as Node.js modules. Module...

Concrete CMS: SSRF bypass

This simply describes a bypass for report at https://hackerone.com/reports/243865, using a decimal notation encoded IP address 0177.0.0.1 currently bypasses the limitations in place for localhost. crayons re-submitting report including "magic" string Concrete5 version used is 8.5.2 Impact...

Shopify: *.shopify.com - Authentication bypass

I´ve found a flaw in the authentication process when accessing the website https://upcoming.shopify.com. There seems to be an HTTP Authentication in place to prevent access without authentication. Please follow below POC to get access to https://upcoming.shopify.com without login. The website is...

Acronis: Missing rate limit for current password field (Password Change) Account Takeover

Vulnerability: Missing Rate Limit for Current Password field Password Change Account Takeover Steps to reproduce the bug: 1Go to Profile Password. Enter any wrong password In current password filed. 2Now enter the new password and Turn the Intercept ON. 3Capture the request & Send the request to...

HackerOne: GraphQL node interface for ActiveResource models lacks encoding for resource identifier, enabling parameter injection in Payments backend

HackerOne exposes a small number of ActiveResource objects through its GraphQL node interface. ActiveResource objects use HTTP as transport layer in order to fetch data. Four of these models, TaxForm, Payout, Payment, and PayoutPreference are fetched from an internal Payments backend system with ...

Nord Security: CORS Misconfiguration on nordvpn.com leading to Private Information Disclosure,Account takeover

Summary: An 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 is fine-grained and can apply access controls per-request based on the URL and other features of th...

MobiSystems Ltd.: Firebase Firestore insecure database

Summary: The app is exposing a firebase database url that has no read/write protections. Steps To Reproduce: 1. Decompile the Android app 2. Do a string search for firebasedatabase 3. Use the project name i.e. msdict-dev in combination with the Firestore REST API to modify the database. Supportin...

Internet Bug Bounty: Out of Bounds Memory Read in exif_scan_thumbnail

I have found and reported an out of bounds memory read in PHP exifscanthumbnail When PHP EXIF extension is parsing EXIF information from an image, e.g. via exifreaddata function, in PHP versions 7.1.x below 7.1.31, 7.2.x below 7.2.21 and 7.3.x below 7.3.8 it is possible to supply it with data wha...

Shopify: Inject page in admin panel via Shopify.API.pushState

Summary Shopify.API.pushState call the method handleRoutePushEvent, allows you to change routes to open pages from admin panel: js handleRoutePushEventpathname: e, search: t, state: a, hash: o const adminPath: n, history: i = this.props // adminPath = /admin , s = "".concatn.concate; // // If we...

Concrete CMS: Stored XSS in Conversations (both client and admin) when Active Conversation Editor is set to "Rich Text"

Hi concrete5 Team, Summary I've identified Stored XSS vulnerability in concrete5 Conversations module, when Active Conversation Editor is set to "Rich Text". An attacker is able to input malicious JavaScript, which is run in both client agains any site visitor as well as against any user logged...

Mail.ru: SSRF On [ allods.mail.ru ]

SSRF in allods.mail.ru. allods.mail.ru belongs to Ext.B scope...

Monero: Remote P2P DoS

Remote P2P DoS resolved. https://www.activism.net/cypherpunk/manifesto.html...

Node.js third-party modules: [serve-here.js] List any file in the folder by using path traversal.

I would like to report Path Traversal in serve-here.js. It allows to list any file in another folder of web root. Module module name: serve-here.js version: 1.1.3 npm page: https://www.npmjs.com/package/serve-here.js Module Description Serve static files over HTTP Vulnerability Vulnerability...

GitLab: DoS attack via comment on Issue

Summary There is no limit to the number of characters in the issue comments, which allows a DoS attack. The DoS attack affects both server-side and client-side. NOTE: This bug happens on GitLab.com. Steps to reproduce ▼Attack for Client-side 1. Sign in to GitLab. 2. Create a project as below: -...

Monero: Excessive Resource Usage

Summary: Unbounded resource usage due to open one file descriptor per connection, Python script below is effectively a threadbomb on the destination and uses all available memory on the server, clients not sending anything are never terminated. Steps To Reproduce: Up our daemon % monerod Check if...

Internet Bug Bounty: Uninitialized read in exif_process_IFD_in_MAKERNOTE

This bug is present in exifprocessIFDinMAKERNOTE method of ext/exif/exif.c file. Detailed description and steps to reproduce for this bug is present in bug report submitted to php.net. Bug Report : https://bugs.php.net/bug.php?id=77563 PHP version : 7.1.26 CVE-ID : 2019-9638 Impact Uninitialized...

U.S. Dept Of Defense: [Critical] Full local fylesystem access (LFI/LFD) as admin via Path Traversal in the misconfigured Java servlet on the https://███/

Description Hello. I discovered a Path Traversal issue on the https://██████████/ I was able to turn it to the local file read, and after series of the test determined that it's possible to reach sensitive system files with administrator rights. POC The next request will read the...

Rocket.Chat: Broken access control on apps

Summary: The user without administrative privileges can upload and install any Application into the rocket.chat As ID of application is controlled in the app.json file which is controlled by uploader user can also activate the app. Releases Affected: 0.73.2 Steps To Reproduce: - User log-in into...

Internet Bug Bounty: efree() on uninitialized Heap data in imagescale leads to use-after-free

The core bug: https://bugs.php.net/bug.php?id=77269 This bugfix actually involves two vulnerabilities: a call to efree on uninitialized data and another free based vulnerability. What is described below is a bug that was fixed in libgd two years ago CVE-2016-10166, but the patch was never applied...

Kaspersky: Web protection component in Anti-Virus products family uses predictable links for certificate warnings

Summary Websites can predict links used in certificate warnings, Safe Money prompts, anti-phishing warnings and similar pages. This allows them to initiate actions without the user's knowledge. Description The links used to override certificate warnings have the following format: https:///?kiscup...

Liberapay: Import of repositories from GitHub is tied to username instead of immutable ID

When a user verifies a Github account at /edit/elsewhere the final result is a Github username tied to a Liberapay account. The issue is Github usernames are mutable. Consider the scenario. 1. I create an account called ed-liberapay something likely to be claimed in the future 2. Verify that I ow...

Uber: Client secret, server tokens for developer applications returned by internal API

@appsecurein identified an internal API for https://riders.uber.com that could return clientsecret and server token for applications authorized by the account owner to access their Uber account. We restricted the data returned by this endpoint. Thanks for bringing this to our attention,...

Zomato: Reflected XSS on developers.zomato.com

There is a vulnerability in https://developers.zomato.com/documentation due to an old version of Swagger UI Step to reproduce: - Create an endpoint containing : json "swagger":"2.0","info":"description":"This is a sample server Petstore server. You can find out more about Swagger at...

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: 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...

Zomato: [www.zomato.com] Tampering with Order Quantity and paying less amount then actual amount, leads to business loss

Hi, Team, Like discussed with Prateek I am dropping the report here. Summary: Like the title says using this vulnerability one could order food at negligible price or keep all delivery executives busy. Description: While fuzzing my way through the payment flow on Zomato orders I came across a...

PayPal: [Venmo Android] Remote theft of user session

A URL activity in the Venmo application used the built-in android.net.Uri parser, which has a known logic problem with certain characters. If an external URL were passed from a website or other app on the device to the application activity, the app would open the URL without properly validating t...

Rocket.Chat: Remote code execution by hijacking an unclaimed S3 bucket in Rocket.Chat's installation script.

Hi team, When I downloaded the latest release of Rocket.Chat to test the fix for my previous report I spotted an install.sh script. Inside that installation script I noticed the following line: diff !/bin/bash set -x set -euvo pipefail IFS=$'\n\t' ROOTPATH=/var/www/rocket.chat PM2FILE=pm2.json if...

Internet Bug Bounty: DoS for HTTP/2 connections by crafted requests (CVE-2018-1333)

modhttp2 can be tricked by specially crafted requests to hold server resources longer than necessary. A simple demonstration of this for a server with h2c enabled is as follows: for x in seq 0 500; do echo...

Slack: SSRF in api.slack.com, using slash commands and bypassing the protections.

Bypassing the reports 61312 and 356765 Tutorial: Go to api.slack.com and create an application with your own slash command. F320014 Enter your own domain: in your own domain: index.php location: http://:::22/ F320019 And save. Go to your Slack and type /youslash Try with my server...

Mail.ru: molotok.m.mail.ru delegated to external entity

SDC bypass secure cookies access vulnerability in m.mail.ru due to subdomain name pointing to uncontrolled external host...

Basecamp: Remote code execution on Basecamp.com

A critical flaw in Basecamp's profile image upload function leads to remote command execution. Images are converted on the server side, but not only image files but also PostScript/EPS files are accepted if renamed to .gif. This is probably due to ImageMagick / GraphicsMagick being used for image...

Liberapay: Punny code Detection Parsing should be implemented on Markdown

Hello Liberapay Security Team, Description When we insert any URL in Markdown Box in liberapay.com/profilename/edit/statement, it reflects on our main profile page. There was main issue which I discovered was about Punny code parsing method which was not enabled on Markdown. Step to Reproduce For...

Monero: Trusted daemon check fails when proxied through torsocks or proxychains

Summary: If torsocks1 or proxychains1 is enforced when using Monero wallet with a remote node without explicit --untrusted-daemon arguments given, the application will assume the daemon is trusted. Description: By default, the wallet checks if the daemon address can be trusted by calling...

HackerOne: Exposing hackerone users personally identifiable information by abusing sandbox with swag reward enabled

Hi HackerOne Team, Summary: I have found a critical bug but this will require a bit user interaction, BUT please take note that once exploited, a hackerone user's PII - personally identifiable information can be exposed. I have found this bug by using the sandbox with swag reward enabled . --- Le...

Vanilla: Vanilla SQL Injection Vulnerability

Summary: There is a SQL injection vulnerability in the vanilla, an attacker can use this vulnerability to obtain database information. Description: We download the program from https://github.com/vanilla/vanilla and install. In applications/dashboard/controllers/class.profilecontroller.php:274 ph...

Valve: Stored XXS @ https://steamcommunity.com/search/users/#text= via Profile Name

Dear Valve security staff, Short description --------------------- There is a stored cross-site-scripting vulnerability present at the user search endpoint which can be exploited by modifying profile name of the would be attacking account. See POC picture. Steps to reproduce ---------------------...

Ed: Session Cookie Without Secure Flag

Hi Ed, The bug mentioned in the report 343095 is not yet correctly patched I believe. Previously, the Researcher reports that the cookiegitlabsession is not Secure Missing Secure Flag and u closed that report as Informative and said that "Expoitability of this issue is so low that it does not...