CVE-2023-29196

CVE-2023-29196 affects Discourse. Not exploitable on default install; a custom feature must be enabled and the attacker’s payload must pass CSP to run. If JavaScript passes CSP, it could enable session hijacking for users viewing the attacker’s post. The issue is patched in the latest tests-passe...

CVE-2023-29196 HTML injection via topic embedding in Discourse

Discourse is an open source platform for community discussion. This vulnerability is not exploitable on the default install of Discourse. A custom feature must be enabled for it to work at all, and the attacker’s payload must pass the CSP to be executed. However, if an attacker succeeds in...

CVE-2023-28440

Discourse is an open source platform for community discussion. In affected versions a maliciously crafted request from a Discourse administrator can lead to a long-running request and eventual timeout. This has the greatest potential impact in shared hosting environments where admins are untruste...

Design/Logic Flaw

Discourse is an open source platform for community discussion. In affected versions a maliciously crafted request from a Discourse administrator can lead to a long-running request and eventual timeout. This has the greatest potential impact in shared hosting environments where admins are untruste...

CVE-2023-28440 Denial of service via admin theme import route in Discourse

Discourse is an open source platform for community discussion. In affected versions a maliciously crafted request from a Discourse administrator can lead to a long-running request and eventual timeout. This has the greatest potential impact in shared hosting environments where admins are untruste...

CVE-2023-28440 Denial of service via admin theme import route in Discourse

Discourse is an open source platform for community discussion. In affected versions a maliciously crafted request from a Discourse administrator can lead to a long-running request and eventual timeout. This has the greatest potential impact in shared hosting environments where admins are untruste...

CVE-2023-28440

CVE-2023-28440 affects Discourse: an admin-authenticated request can trigger a long-running operation, leading to a denial of service (availability impact) in affected builds. Public records identify the vulnerability as a Denial of Service via the admin theme import route, with mitigation by upg...

Discourse cross-site scripting vulnerabilities

Discourse is an open source community discussion platform. The platform includes community, email, and chat room features. A cross-site scripting vulnerability exists in Discourse that could allow an attacker to upload an SVG file to execute arbitrary JavaScript code on a user's browser. Affected...

Discourse cross-site scripting vulnerabilities

Discourse is an open source community discussion platform. The platform includes community, email, and chat room features. Discourse suffers from a cross-site scripting vulnerability that originates from allowing embedding of Javascript via CSP, leading to user session hijacking. Affected product...

Discourse security vulnerabilities

Discourse is an open source community discussion platform. The platform includes community, email, and chat room features. A security vulnerability exists in Discourse that originates from a user logged in as an administrator being able to call any method on the SiteSetting class, which can affec...

Discourse Resource Management Error Vulnerability

Discourse is an open source community discussion platform. The platform includes features such as communities, email, and chat rooms. A resource management error vulnerability exists in Discourse, which stems from the fact that a malicious request from a Discourse administrator could cause the...

PT-2023-22804 · Discourse · Discourse

Name of the Vulnerable Software and Affected Versions: Discourse versions prior to the latest stable, beta and tests-passed versions Description: Discourse is an open source platform for community discussion. In affected versions, a user logged as an administrator can call arbitrary methods on th...

PT-2023-21723 · Discourse · Discourse

Name of the Vulnerable Software and Affected Versions: Discourse versions prior to 3.0.3 Discourse versions prior to 3.1.0.beta4 Description: Discourse is an open source platform for community discussion. A maliciously crafted request from a Discourse administrator can lead to a long-running...

CVE-2023-30538: Improper Neutralization of Input During Web Page Generation

Discourse is an open source platform for community discussion. Due to the improper sanitization of SVG files, an attacker can execute arbitrary JavaScript on the users’ browsers by uploading a crafted SVG file. This issue is patched in the latest stable and tests-passed versions of Discourse. Use...

CVE-2023-29196: Improper Neutralization of Input During Web Page Generation

Discourse is an open source platform for community discussion. This vulnerability is not exploitable on the default install of Discourse. A custom feature must be enabled for it to work at all, and the attacker’s payload must pass the CSP to be executed. However, if an attacker succeeds in...

CVE-2023-28440: Uncontrolled Resource Consumption

Discourse is an open source platform for community discussion. In affected versions a maliciously crafted request from a Discourse administrator can lead to a long-running request and eventual timeout. This has the greatest potential impact in shared hosting environments where admins are untruste...

CVE-2023-30606: Incorrect Permission Assignment for Critical Resource

Discourse is an open source platform for community discussion. In affected versions a user logged as an administrator can call arbitrary methods on the SiteSetting class, notably clearcache! and notifychanged!, which when done on a multisite instance, can affect the entire cluster resulting in a...

PT-2023-22765 · Discourse · Discourse

Name of the Vulnerable Software and Affected Versions: Discourse versions prior to the latest stable and tests-passed versions Description: The issue arises from the improper sanitization of SVG files, allowing an attacker to execute arbitrary JavaScript on users' browsers by uploading a crafted...

Discourse < 3.0.2 Multiple Vulnerabilities

Discourse is prone to multiple vulnerabilities. SPDX-FileCopyrightText: 2023 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only CPE = "cpe:/a:discourse:discourse"; ifdescripti...

CVE-2023-28112

Discourse is an open-source discussion platform. Prior to version 3.1.0.beta3 of the beta and tests-passed branches, some user provided URLs were being passed to FastImage without SSRF protection. Insufficient protections could enable attackers to trigger outbound network connections from the...