Discourse 3.5.x < 3.5.0.beta6 XSS Vulnerability

Discourse is prone to a cross-site scripting XSS vulnerability. SPDX-FileCopyrightText: 2025 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 =...

CVE-2025-49845

Discourse is an open-source discussion platform. The visibility of posts typed whisper is controlled via the whispersallowedgroups site setting. Only users that belong to groups specified in the site setting are allowed to view posts typed whisper. However, it has been discovered that users of...

CVE-2025-49845 Discourse users are able to see their own whispers even after being removed from a group that has been configured to see whispers

Discourse is an open-source discussion platform. The visibility of posts typed whisper is controlled via the whispersallowedgroups site setting. Only users that belong to groups specified in the site setting are allowed to view posts typed whisper. However, it has been discovered that users of...

CVE-2025-49845 Discourse users are able to see their own whispers even after being removed from a group that has been configured to see whispers

Discourse is an open-source discussion platform. The visibility of posts typed whisper is controlled via the whispersallowedgroups site setting. Only users that belong to groups specified in the site setting are allowed to view posts typed whisper. However, it has been discovered that users of...

CVE-2025-49845

Discourse has a vulnerability (CVE-2025-49845) where users on versions prior to 3.4.6 (stable) or 3.5.0.beta8-dev (tests-passed) can still view their own whispers after losing visibility to posts typed whisper. The issue is fixed in 3.4.6 and 3.5.0.beta8-dev. No publicly provided workarounds are ...

CVE-2025-49845 Discourse users are able to see their own whispers even after being removed from a group that has been configured to see whispers

Discourse is an open-source discussion platform. The visibility of posts typed whisper is controlled via the whispersallowedgroups site setting. Only users that belong to groups specified in the site setting are allowed to view posts typed whisper. However, it has been discovered that users of...

Malicious code in discourse-mf (npm)

The package communicates with a domain associated with malicious activity. --- -= Per source details. Do not edit below this line.=- Source: ghsa-malware 08376ea7d043c168bc4090d97de1318100b0b2ffb0600a3694a286b5c4b88dea Any computer that has this package installed or running should be considered...

MAL-2025-5391 Malicious code in discourse-mf (npm)

The package communicates with a domain associated with malicious activity. --- -= Per source details. Do not edit below this line.=- Source: ghsa-malware 08376ea7d043c168bc4090d97de1318100b0b2ffb0600a3694a286b5c4b88dea Any computer that has this package installed or running should be considered...

CVE-2025-48954

Discourse is an open-source discussion platform. Versions prior to 3.5.0.beta6 are vulnerable to cross-site scripting when the content security policy isn't enabled when using social logins. Version 3.5.0.beta6 patches the issue. As a workaround, have the content security policy enabled...

CVE-2025-48954 Discourse vulnerable to XSS via user-provided query parameter in oauth failure flow

Discourse is an open-source discussion platform. Versions prior to 3.5.0.beta6 are vulnerable to cross-site scripting when the content security policy isn't enabled when using social logins. Version 3.5.0.beta6 patches the issue. As a workaround, have the content security policy enabled...

EUVD-2025-28274

Discourse is an open-source discussion platform. Versions prior to 3.5.0.beta6 are vulnerable to cross-site scripting when the content security policy isn't enabled when using social logins. Version 3.5.0.beta6 patches the issue. As a workaround, have the content security policy enabled...

CVE-2025-48954 Discourse vulnerable to XSS via user-provided query parameter in oauth failure flow

Discourse is an open-source discussion platform. Versions prior to 3.5.0.beta6 are vulnerable to cross-site scripting when the content security policy isn't enabled when using social logins. Version 3.5.0.beta6 patches the issue. As a workaround, have the content security policy enabled...

CVE-2025-48954

Discourse CVE-2025-48954 affects versions prior to 3.5.0.beta6, where a Cross-site Scripting (XSS) vulnerability exists in the OAuth/social login flow due to insufficient Content Security Policy enforcement during login failures. The stored XSS can allow injection and execution of scripts in vict...

CVE-2025-48954 Discourse vulnerable to XSS via user-provided query parameter in oauth failure flow

Discourse is an open-source discussion platform. Versions prior to 3.5.0.beta6 are vulnerable to cross-site scripting when the content security policy isn't enabled when using social logins. Version 3.5.0.beta6 patches the issue. As a workaround, have the content security policy enabled...

PT-2025-26829 · Discourse · Discourse

Name of the Vulnerable Software and Affected Versions: Discourse versions prior to 3.5.0.beta6 Description: The issue is related to cross-site scripting when the content security policy is not enabled, specifically when using social logins. Recommendations: For versions prior to 3.5.0.beta6, upda...

PT-2025-26841 · Discourse · Discourse

Name of the Vulnerable Software and Affected Versions: Discourse versions prior to 3.4.6 Discourse versions prior to 3.5.0.beta8-dev Description: Discourse is an open-source discussion platform where the visibility of posts typed whisper is controlled via the whispers allowed groups site setting...

Discourse 信息泄露漏洞

Discourse is an open source community discussion platform from Discourse Open Source. The platform includes features such as communities, email, and chat rooms. An information disclosure vulnerability exists in Discourse versions prior to 3.4.6 and prior to 3.5.0.beta8-dev, which stems from users...

Discourse 跨站脚本漏洞

Discourse is an open source community discussion platform from Discourse Open Source. The platform includes features such as communities, email and chat rooms. A cross-site scripting vulnerability exists in versions prior to Discourse 3.5.0.beta6, which stems from a cross-site scripting attack th...

The vulnerability of the FileStore::LocalStore component in the Discourse mailing list management software allows a perpetrator to gain unauthorized access to protected information.

The vulnerability of the FileStore::LocalStore component in the Discourse mailing list management software is related to insufficient protection of operational data. Exploiting this vulnerability could allow an attacker, operating remotely, to gain unauthorized access to protected information...

CVE-2025-48053

Discourse is an open-source discussion platform. Prior to version 3.4.4 of the stable branch, version 3.5.0.beta5 of the beta branch, and version 3.5.0.beta6-dev of the tests-passed branch, sending a malicious URL in a PM to a bot user can cause a reduced the availability of a Discourse instance...