GitLab: Stored XSS in markdown via the DesignReferenceFilter

Summary When rendering markdown, links to designs are parsed using the following linkreferencepattern: https://gitlab.com/gitlab-org/gitlab/-/blob/v13.12.1-ee/app/models/designmanagement/design.rbL168 ruby def self.linkreferencepattern @linkreferencepattern ||= begin pathsegment =...

Basecamp: HTTP Request Smuggling via HTTP/2

HTTP Request Smuggling via HTTP/2...

Node.js: Node Installer Local Privilege Escalation

Node is vulnerable to local privilege escalation attacks under certain conditions on Windows platforms. More specifically, improper configuration of permissions in the installation directory allows an attacker to perform two different escalation attacks: PATH and DLL hijacking. To demonstrate thi...

Drugs.com: Cross-site Scripting (XSS) - Reflected

The drugs.com website was found to be vulnerable to a cross-site scripting XSS attack in the "imprint" parameter. The vulnerability was triggered when a long string of text was entered, which always resulted in search results. This allowed an attacker to inject malicious JavaScript code that coul...

Informatica: F5 BIG-IP Cookie potentially reveal BigIP pool name, backend's IP address and port, routed domain.

Hi Team, I hope everything is well. I am Kabeer Saxena a Security Researcher and I have found a bug Issue: ---------- F5 BIG-IP Cookie Remote Information Disclosure Vulnerable IP: ---------------- ██████:443 Certificate Information: ==X509v3 Subject Alternative Name:== ==DNS:████████== Summary:...

Nextcloud: Leaking sensitive information through JSON file path.

Hello team, I have found one JSON path at "https://lookup.nextcloud.com/" which is leaking some information like Username, email id, version, etc.. I guess it show the user who have installed or configure anything through the vendor. I was also able to download some of the zip files of the vendor...

MTN Group: Reflected XSS at dailydeals.mtn.co.za

Hello MTN Group: I found reflected XSS vi categoryid= parameter . The server reads data directly from the HTTP request and reflects it back in the HTTP response. Reflected XSS exploits occur when an attacker causes a victim to supply dangerous content to a vulnerable web application, which is the...

8x8: [jitsi-meet] Authentication Bypass when using JWT w/ public keys

A Prosody module allows the use of symmetrical algorithms to validate JWTs. This means that tokens generated by arbitrary sources can be used to gain authorization to protected rooms. There are no known incidents related to this vulnerability. Please refer to the published advisory:...

Nextcloud: Serverinfo endpoints are not bruteforce protected nor are tokens properly generated

The serverinfo app allows accessing the endpoints also via a custom token. https://github.com/nextcloud/serverinfo/blob/9ae9dde028a684e53a1b37c9ba8e964ffe42a97f/lib/Controller/ApiController.phpL121 The token is set/generated via...

Internet Bug Bounty: 1-byte heap buffer overflow in DNS resolver

Official announcement: http://mailman.nginx.org/pipermail/nginx-announce/2021/000300.html A security issue in nginx resolver was identified, which might allow an attacker to cause 1-byte memory overwrite by using a specially crafted DNS response, resulting in worker process crash or, potentially,...

Nextcloud: Federated editing allows iframing possibly malicious remotes

So this attack is less likely now that you killed the trusted server auto adding. But as far as I could tell you did not clear out old servers. Let me first describe the attack: 1. UserA on ServerA sends a federated share to userB on serverB 2. Assume serverA and serverB are trusted servers 3. No...

Khan Academy: Enumerate all the class codes via google dorking

I used this particular google dork site:khanacademy.org/join/ to enumerate all the links of joining classes. 1. Go to google and use the above query to enumerate all of them. 2. Create the student account by filling all the required details 3. Now you're in the class without being actually invite...

Node.js: OOB read in libuv

Summary: The pointer p is read and increased without checking whether it is beyond pe, with the latter holding a pointer to the end of the buffer. This can lead to information disclosures or crashes. This function can be triggered via uvgetaddrinfo. nodejs seems to use libuv and is possibly...

Reddit: XSS

hi security team i have found a XSS in old.reddit.com and in reddit.com Description: Cross-site scripting also known as XSS is a web security vulnerability that allows an attacker to compromise the interactions that users have with a vulnerable application. It allows an attacker to circumvent the...

U.S. General Services Administration: Account takeover through multistage CSRF at https://autochoice.fas.gsa.gov/AutoChoice/changeQAOktaAnswer and ../AutoChoice/changePwOktaAnswer

Hi, Account takeover is possible through CSRF vulnerability at 'Change Security Question/Answer' & ' Change Password'. The endpoints - https://autochoice.fas.gsa.gov/AutoChoice/changeQAOktaAnswer & https://autochoice.fas.gsa.gov/AutoChoice/changePwOktaAnswer both are vulnerable to CSRF attack...

X (Formerly Twitter): Blind XSS on Twitter's internal Big Data panel at █████████████

An attacker appears to be able to send an XSS payload to Twitter staff members, using a Support Form. This XSS payload will execute in the context of an internal subdomain, allowing it to exfiltrate sensitive internal Twitter information...

Bitwarden: When uploading attachments, unencrypted file names are made available to the server

Certain Bitwarden clients were inadvertently posting raw filenames to the server when saving new attachments. The server was discarding this value and properly storing the encrypted filename, however, a malicious server could glean some information from the filename if it were inclined. The issue...

Courier: 2 Bypass of #1067533 rate limit via X-Forwarded-For<space>: Source IP on ( www.trycourier.app )

A vulnerability with AWS API Gateway was uncovered that allowed rate limiting to be bypassed when the X-Forwarded-For headed was manipulated a string added to the header key I was able to bypass the rate limit by adding extra space before the colon X-Forwarded-For: 127.0.0.1. The actual bug was i...

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...

VK.com: Open redirect в карусели сообщения бота

Открытое перенаправление в каруселях чат-ботов. Уязвимость позволяет перенаправить пользователя на вредоносную ссылку из карусели, минуя away.php...

Clario: rXSS on https://mackeeperapp.mackeeper.com/landings/download-blue/

Summary: Founded XSS on https://mackeeperapp.mackeeper.com/landings/download-blue/ PoC https://mackeeperapp.mackeeper.com/landings/download-blue/?affid=b450fb80-0136-11eb-a01d-50cf6001b201-zzb&epayId=;alertdocument.domain;//&guid=xxx Impact An attacker can run any malicious javascript code on a...

Reddit: No rate limit leads to spaming post

Vulnerability description not provided...

QIWI: account impersonate through broken link

hi team, hope you are good, A link in qiwi.com was broken and anyone could create that account which leads to account impersonate poc:- F1310817 Steps To Reproduce 1 Visit https://qiwi.com/sm 2 the link will redirect you to http://unbouncepages.com/savemyphone/ which is throwing a error "The...

Ruby: CGI::Cookieクラスにおけるセキュリティ上好ましくない仕様および実装

以下のCGIスクリプトについて、name、path、domainに改行、等号、改行のインジェクションが可能 !/usr/bin/env ruby require "cgi" cgi = CGI.new name = "name" path = "/" domain = "example.jp" cookie = CGI::Cookie.new'name' = name, 'value' = "value", 'domain' = domain, 'path' = path cgi.out"cookie" = cookie...

Open-Xchange: Command Injection via STARTTLS in SMTP

During our research into the security of email servers at Münster University of Applied Sciences, we found a command injection vulnerability related to STARTTLS in Dovecot. See the attached advisory for details. The vulnerability allows a MITM attacker between a mail client and Dovecot to inject...

Ruby: RubyのCGIライブラリにHTTPレスポンス分割（HTTPヘッダインジェクション）があり、秘密情報が漏洩する

PoC1: !/usr/bin/env ruby require 'cgi' cgi = CGI.new url = "http://example.jp\r\nSet-Cookie: foo=bar;" External Parameter print cgi.header'status' = '302 Found', 'Location' = url Actual Result1: $ curl -s -i http://localhost:8080/cgi-bin/cgi.ru HTTP/1.1 302 Found Date: Fri, 21 May 2021 00:46:33 G...

GitHub Security Lab: [Java] CWE-094: Rhino code injection

This bug was reported directly to GitHub Security Lab...

GitHub Security Lab: [Java] CWE-094: Jython code injection

This bug was reported directly to GitHub Security Lab...

GitHub Security Lab: [Java]: CWE-601 Spring url redirection detect

This bug was reported directly to GitHub Security Lab...

Brave Software: DNS Leaks when using any VPN Browser extension with Brave Shield enabled

If Brave Shield is enabled alongside with a VPN Chrome extension and adblocking is enabled, some DNS requests may not be forwarded through the VPN tunnel...

Nextcloud: Webauthn tokens are not removed on user deletion

userA has an account on serverA 2. userA enables passwordless login webauthn and registers a key/device 3. userA is removed from the system 4. a new user comes along and gets assigned userA as id 5. the old userA tries to login with their key 6. the old userA can see all data of the new userA...

Reddit: No Rate Limit on redditgifts gift when Adding Comment

Hi team, I hope this report should not be closed as INFORMATIVE Summary: The add comment endpoint was improperly rate-limited so the potential attacker could post a large number of comments, overloading the server . Description: The add comment endpoint has a speed limit, but the number is set to...

UPchieve: Session Hijacking leads to full control of account by attacker

Hi Team , I am Samprit Das MCEH Metaxone Certified Ethical Hacker and a Security Researcher I just checked your website and got a critical vulnerability please read the report carefully. Description:- The Session Hijacking attack consists of the exploitation of the web session control mechanism,...

Recorded Future: [https://app.recordedfuture.com] - Reflected XSS via username parameter

Steps To Reproduce: 1- Visit https://app.recordedfuture.com/live/login/?reset=x&username=xss%22%3E%3Cimg+src=x+onerror=alertdocument.domain%3E Impact An attacker could be able to Inject Malicious Javascript to compromise users...

Nextcloud: No admin audit log for auth tokens

There seems to be no audit trail for auth tokens. Creating tokens Revoking tokens Scope changes Renames Marking the token to be wiped Impact As auth tokens are used to access your data having a track record when they are created helps a lot. If you also take https://hackerone.com/reports/1193321...

Nextcloud: No admin audit entry for enabling/disabling 2FA

Related to https://hackerone.com/reports/1177353 When a user enables or disables 2FA there is no entry in the audit log. Impact Especially for disabling it should probably be logged there. But account security related things should be in there...

Nextcloud: Federated share accepting/declining is not logged in audit log

In relation to https://hackerone.com/reports/1177353 1. Enable the audit log 2. Share a file to a federated user 3. So far all looks good in the log 4. the recipient checks either accepts or declines the share 5. There is no line regarding this in the logs. Impact The audit log is used to get a...

Nextcloud: Admin audit is not properly logging unsetting of expiration date

In relation to https://hackerone.com/reports/1177353 1. Enable the audit log 2. Share a file 3. Set and expiration date So far all looks good in the log 4. Unset the the expiration date. 5. See a pretty useless log line Impact The audit log is used to get a full trail of the actions which is now...

Nextcloud: Ransomware protection is missing extentions take 2

As requested in https://hackerone.com/reports/1195568 Impact So not spam ;...

U.S. Dept Of Defense: XSS trigger via HTML Iframe injection in ( https://██████████ ) due to unfiltered HTML tags

Hi team, I found an Iframe injection issue where I chained it and formed an XSS. I found the issue in the text editor area while ███████ing the account. There is a place in the registration area where we have to give a reason for █████████. We can write our reason and edit to show more beautifull...

Nextcloud: User deletion is not handled properly everywhere

So I came across this when going over https://nextcloud.com/compare/ And noticed the section: "BUILT IN DATA-REQUEST/ACCOUNT DELETION" However looking at this it seems this is not handled properly everywhere in Nextcloud. I understand that the GDPR etc do consider shared data differently. For...

Aiven Ltd: Grafana RCE via SMTP server parameter injection

Summary: This report is similar to 1180653, except with different parameter injection entrypoint. SMTP server password configuration setting accepts new line characters. This can be used to set non-exported configuration variables. Using this CRLF-injection, the renderingargs of grafana image...

R3: Exposed Prometheus instance at prometheus.qa.r3.com

Summary Hi there, just wanted to note that all of your assets are listed as out of scope on HackerOne right now, which is a bit confusing. Nevertheless, I noticed that your Prometheus server at prometheus.qa.r3.com is exposed to the internet, which appears to let you view all of the internal...

TikTok: Bypassing authorization of linked Instagram account

A bug was found in the capability to link a user's Instagram account to their TikTok profile page, where if a user changed their Instagram username, the link on their TikTok profile would not update accordingly. We thank @ckerha for reporting this to our team...

Sifchain: clickjacking vulnerability

Summary: add summary of the vulnerability While performing security testing of your website i have found the vulnerability called Clickjacking. Many URLS are in scope and vulnerable to Clickjacking. What is Clickjacking ? Clickjacking User Interface redress attack, UI redress attack, UI redressin...

Sifchain: Possible Database Details stored in values.yaml

The database details like username and database name are disclosed in the below mentioned file. Assuming a blank password since the password field was empty. File Location : https://github.com/Sifchain/sifnode/blob/740331dad061ee0f5a3cf3798d429f294b70f0ae/deploy/helm/block-explorer/values.yaml I...

UPchieve: 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 ...

UPchieve: Clickjacking on profile page leading to unauthorized changes

Summary: Any attacker could use iFrame options to connect remotely to the real website, And he can craft his own website using the iFrame options of the specific link and can lead to unauthorized changes if the user will be logged in. Steps To Reproduce: 1. Login to https://app.upchieve.org/profi...

Sifchain: Wrong Implementation of Url in https://docs.sifchain.finance/

Hello Sifchain team, Here i found that there is a wrong implementation of telegram link in https://docs.sifchain.finance/join-sifchain/sifchain-communities which will not allow user to communicate with sifchain company. Step to reproduce : 1 Go to...

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...