Trello: Subdomain Takeover Possible [N/A]

Hello , Team Trello Security Today == 04/11/2017 , 03:52 , I Discovred A Issue in Your Website , i found this error In : http://d2k1ftgv7pobq7.cloudfront.net/ ======================================================= ERROR The request could not be satisfied. Bad request. Generated by cloudfront...

Trello: A CRLF injection into the redirect URL of https://trello.com/1/authorize can be used to cause a denial of service when later redirected to

Just found this, tested it on a whim and deeply regretted it. Sorry! So to recreate the issue: 1. Visit...

Trello app for iOS cross-site scripting vulnerability

Trello app for iOS is a free iOS-based project management tool developed by the American company Trello. The product features high flexibility and a visual interface. A cross-site scripting vulnerability exists in versions of Trello app prior to 4.0.8 for iOS-based platforms. A remote attacker ca...

Cross site scripting

Cross-site scripting XSS vulnerability in the Trello app before 4.0.8 for iOS might allow remote attackers to inject arbitrary web script or HTML by uploading and attaching a crafted photo to a Card...

CVE-2017-9244

Cross-site scripting XSS vulnerability in the Trello app before 4.0.8 for iOS might allow remote attackers to inject arbitrary web script or HTML by uploading and attaching a crafted photo to a Card...

CVE-2017-9244

Cross-site scripting XSS vulnerability in the Trello app before 4.0.8 for iOS might allow remote attackers to inject arbitrary web script or HTML by uploading and attaching a crafted photo to a Card...

CVE-2017-9244

The Trello iOS app (pre-4.0.8) contains a cross-site scripting (XSS) vulnerability that allows a remote attacker to inject arbitrary web script or HTML by uploading and attaching a crafted photo to a Card. Affected versions are prior to 4.0.8; the issue is triggered when handling the image attach...

CVE-2017-9244

Cross-site scripting XSS vulnerability in the Trello app before 4.0.8 for iOS might allow remote attackers to inject arbitrary web script or HTML by uploading and attaching a crafted photo to a Card...

Trello: Unpatched (https://hackerone.com/reports/221928)- Unviladate File Upload to XSS on trello-attachment Bucket

Report no: https://hackerone.com/reports/221928 is unpatched. Poc: https://trello-attachments.s3.amazonaws.com/59663070a9025afc4b32c7c6/596641e05abfc29b1bd67ff8/9c5258c6acf27ffdf5e80d5bfabbb83b/lol.svg XSS Link...

Trello: api flaw

Hope you guys are doing great. While going through your api documentation on https://developers.trello.com/advanced-reference/cardpost-1-cards-card-id-or-shortlink-actions-comments , an api endpoint POST /1/cards/card id or shortlink/attachments supposed to be rate-limited after 100 attachment bu...

Trello: XML entity expansion using svg file

Hope you guys are doing great. I want to report xml entity expansion bug while uploading svg file . When adding a card in boards it also allows to upload attachments which can include svg files. Users or admin can then download those attachment but the problem is when svg file is uploaded, websit...

Trello: Cross-Site Scripting on Trello's iPhone App

Description There is a Stored Cross-Site Scripting vulnerability on Trello's iPhone App due to the incorrect handling of the uploaded file in Trello's Card Attachment. This allows an attacker to execute JavaScript. Proof of Concept I used Burpsuite to intercept the request and 2 devices Laptop an...

Trello: Malicious file can be hidden as Card Attachment or Card Cover image

You can upload infected jpeg files to a card. If a user clicks on the attachment image, the infected file will get downloaded instead of showing the image. On opening it, any sort of system calls can be run on the victim. Steps to Reproduce 1 Navigate to https://trello.com/ 2 Click on the Tutoria...

Trello - Customized SSL, Dangerous filesystem permissions vulnerabilities

HackApp vulnerability scanner discovered that application Trello published at the 'play' market has multiple vulnerabilities...

Trello: Rate limiting of incorrect Two Factor Authentication codes not enforced

Trello has a feature which allows the user to enable Two factor authentication to enhance the security. But no Rate Limiting is present on second authentication, i.e. code sent to Registered Mobile Number. Attacker can try as many attempts as he wants to bypass the 2 factor authentication. So usi...

Trello: Email authentication token fails to expire and can be used multiple times for same Email address on Trello.com

Hi there Trello Security Team , I have noticed a certain behaviour at https://trello.com . What I belief to be a bug . Summery: --------------------- You can authenticate an email added on your account with same authentication token multiple times . You remove it , add it again use the same token...

Trello: Exporting JSON of other Boards

Details: Using this vulnerability attacker can get all the each and every detail related to the specific Board. More over other details which leaks are : 1. username , fullname , Initial etc Of Victim and many other... Description: + go to account boards choose board , then go to Print And Export...

Trello: The contact page is vulnerable to self-XSS via upload file name

https://trello.com/contact?nosearch=1&source=from%20helpsite%20beacon Save a file name as an XSS payload ; " . jpg It can only be done in linux because you cant rename a file as a payload in windows Click it and an xss will popup...

Trello: SVG Uploads / Attachments can be viewed by anyone that knows the URL

1 Login 2 Create a new private board 3 Upload the SVG file attached 4 Grab the file URL 5 Open a new incognito window and navigate to the URL. Note that you were able to access the SVG file as well as that the script payload executed...

Trello: Stealing power up private tokens (trello, twitter, github...)

It was possible for a malicious power-up to modify it's communications with the Trello web client in a way that would cause itself to be misidentified as a different power-up. This would potentially allow the malicious power-up to access the other power-up's private data, potentially including AP...