HackerOne: Password not checked when disabling 2FA on HackerOne

Hi, when I was submitted a report to a program that request 2FA ON, I notice that if you try to disable this option will ask for backup code - password and if you enter a random password in the request filed and a correct backup code it will be successfully disabled the 2FA without check if the...

Slack Bug Allows Remote File Hijacking, Malware Injection

A remotely exploitable vulnerability in the Windows desktop app version of the Slack collaboration platform has been uncovered, which allows attackers to alter where files from Slack are downloaded. Nefarious types could redirect the files to their own SMB server; and, they could manipulate the...

X (Formerly Twitter): login csrf in analytics.mopub.com

Description: There is no csrftoken validation while logging in which leads to csrf. base request : POST /login HTTP/1.1 Host: analytics.mopub.com Connection: close Content-Length: 37 Accept: application/json, text/plain, / Origin: https://analytics.mopub.com User-Agent: Mozilla/5.0 Windows NT 10....

Cross-Site Scripting

Overview All version of bootbox are vulnerable to Cross-Site Scripting. The package does not sanitize user input in the provided dialog boxes, allowing attackers to inject HTML code and execute arbitrary JavaScript. Recommendation Sanitize user input being passed to bootbox or consider using an...

HackerOne: View HackerOne challenge scope before challenge begins

Summary: Hi team, I have come across an issue where I am able to view a HackerOne challenge scope before the challenge begins. The issue here being that I can get an understanding of what the in-scope assets are before a challenge starts, allowing myself to start researching and finding bugs to...

HackerOne: Open Redirection in [https://www.hackerone.com/index.php]

You are resolved open redirect issue report 439075.This report publicly disclosed. but this issue again work at this time. When a user visit http://www.hackerone.com/index.php/index.php.evil.com user will be redirected to www.hackerone.com.evil.com Steps To Reproduce Click on this link...

Ruby On Rails DoubleTap Development Mode secret_key_base Remote Code Execution Exploit

This Metasploit module exploits a vulnerability in Ruby on Rails. In development mode, a Rails application would use its name as the secretkeybase, and can be easily extracted by visiting an invalid resource for a path. As a result, this allows a remote user to create and deliver a signed...

Ad Server Patched to Stop Possible Malware Distribution

UPDATE The open-source advertising platform Revive Adserver is urging customers to patch two vulnerabilities, one of which is critical and may have been exploited to allow hackers to deliver malware to third-party websites. Revive Adserver, formerly known as OpenX Source, is a free, open-source a...

Revive Adserver Deserialization / Open Redirect

======================================================================== Revive Adserver Security Advisory REVIVE-SA-2019-001 ------------------------------------------------------------------------ https://www.revive-adserver.com/security/revive-sa-2019-001...

HackerOne: Account recovery text message is sending a wrong domain to users.

Hey, I hope you're fine. : Summary: When users setup Account recovery at Authentication section Hackerone sends them text message to their updated phone number with a wrong domain link. Description: When users adds phone number at Account recovery, they get a text message on their phone number,...

TomTom: Reflected Cross Site Scripting vuln in tomtom.com

Hello Tomtom security team I found a reflected cross site scripting security vulnerability in tomtom.com https://www.tomtom.com/nlnl/search/?q=27%22--%3E%3CDetails%20Open%20OnToggle=confirmdocument.domain%3E This payload when loaded displays the domain the XSS vulnerability occurs in www.tomtom.c...

Lyst: [https://█████████/]&&[https://█████████/] Open Redirection

Summary Hi Team, An attacker can redirect vicitm on an external website using https://████/account/login endpoint because next parameter is not being validated properly. Affected URL https://███/account/login/?next=///////////////////////////evil.com Steps to Reproduce 1 Go...

HackerOne: Unreleased CTF Levels are Revealed on /group/user/ID1?user=USERID endpoint

Summary: At this moment, the two new upcoming CTF levels for https://ctf.hacker101.com/ctf have not been revealed. However, an IDOR at the https://ctf.hacker101.com/group/user/ID1?user=USERID endpoint reveals them see attached screenshot Description: Steps To Reproduce 1. Create a group. 2. At th...

Unauthorized File Access

Overview Versions of glance prior to 3.0.7 are vulnerable to Unauthorized File Access. The package provides a --nodot option meant to hide files and directories with names that begin with a ., such as .git but fails to hide files inside a folder that begins with .. Recommendation Upgrade to versi...

Grammarly: Account takeover through the combination of cookie manipulation and XSS

Summary: A cookie based XSS on www.grammarly.com exists due to reflection of a cookie called gnarcontainerId in DOM without any sanitization. Normally, gnarcontainerId is being set by the server however a vulnerable endpoint at gnar.grammarly.com called "/cookies" allows us to manipulate cookies...

Cross-Site Scripting

Overview All versions of buttle are vulnerable to Cross-Site Scripting. Due to misconfiguration of its rendering engine, buttle does not sanitize the HTML output allowing attackers to run arbitrary JavaScript when processing malicious markdown files. Recommendation No fix is currently available...

Prototype Pollution

Overview All versions of upmerge are vulnerable to Prototype Pollution. The merge function fails to prevent user input to alter an Object's prototype, allowing attackers to modify override properties of all objects in the application. This may lead to Denial of Service or may be chained with othe...

Cross-Site Scripting

Overview All versions of harp are vulnerable to Cross-Site Scripting. Due to misconfiguration of its rendering engine, harp does not sanitize the HTML output allowing attackers to run arbitrary JavaScript when processing malicious files. Recommendation No fix is currently available. Consider usin...

Passit: URL is vulnerable to clickjacking https://app.passit.io/

URLs do not have X-FRAME-OPTIONS set to DENY or SAMEORIGIN, and they are vulnerable to clickjacking. Reproduce steps: 1. enter your credentials and click on stay logged into this device then login 2. Run under the browser's code and you will see that the listed links are vulnerable to clickjackin...

Arbitrary File Overwrite

Overview Versions of tar prior to 4.4.2 for 4.x and 2.2.2 for 2.x are vulnerable to Arbitrary File Overwrite. Extracting tarballs containing a hardlink to a file that already exists in the system, and a file that matches the hardlink will overwrite the system's file with the contents of the...