BIT-DISCOURSE-2026-91157 Discourse: Media uploads remain publicly accessible after category permissions are restricted

Discourse is an open-source discussion platform. Prior to 2026.9.0, 2026.8.1, 2026.7.3, and 2026.1.9, sites with secure uploads enabled did not reconcile existing upload security metadata when a previously public category became read-restricted or when category permissions changed during a bulk...

CVE-2026-91157 Discourse: Media uploads remain publicly accessible after category permissions are restricted

Discourse is an open-source discussion platform. Prior to 2026.9.0, 2026.8.1, 2026.7.3, and 2026.1.9, sites with secure uploads enabled did not reconcile existing upload security metadata when a previously public category became read-restricted or when category permissions changed during a bulk...

EUVD-2026-101302

Discourse is an open-source discussion platform. Prior to 2026.9.0, 2026.8.1, 2026.7.3, and 2026.1.9, sites with secure uploads enabled did not reconcile existing upload security metadata when a previously public category became read-restricted or when category permissions changed during a bulk...

CVE-2026-91157 Discourse: Media uploads remain publicly accessible after category permissions are restricted

Discourse is an open-source discussion platform. Prior to 2026.9.0, 2026.8.1, 2026.7.3, and 2026.1.9, sites with secure uploads enabled did not reconcile existing upload security metadata when a previously public category became read-restricted or when category permissions changed during a bulk...

CVE-2026-91157 Discourse: Media uploads remain publicly accessible after category permissions are restricted

Discourse is an open-source discussion platform. Prior to 2026.9.0, 2026.8.1, 2026.7.3, and 2026.1.9, sites with secure uploads enabled did not reconcile existing upload security metadata when a previously public category became read-restricted or when category permissions changed during a bulk...

CVE-2026-91157

The open-source discussion platform Discourse is vulnerable to unauthorized information exposure in versions prior to 2026.9.0, 2026.8.1, 2026.7.3, and 2026.1.9 . When secure uploads are enabled, the system fails to reconcile security metadata for existing media when a category transitions from p...

CVE-2026-91157: Exposure of Sensitive Information to an Unauthorized Actor

Discourse is an open-source discussion platform. Prior to 2026.9.0, 2026.8.1, 2026.7.3, and 2026.1.9, sites with secure uploads enabled did not reconcile existing upload security metadata when a previously public category became read-restricted or when category permissions changed during a bulk...

CVE-2026-33415 Discourse: Improper Access Control in discourse-ai Allows Unauthorized Category Content Exposure

Discourse is an open-source discussion platform. From versions 2026.1.0-latest to before 2026.1.3, 2026.2.0-latest to before 2026.2.2, and 2026.3.0-latest to before 2026.3.0, an authenticated moderator-level user could retrieve post content, topic titles, and usernames from categories they were n...

CVE-2026-33415

Discourse is an open-source discussion platform. From versions 2026.1.0-latest to before 2026.1.3, 2026.2.0-latest to before 2026.2.2, and 2026.3.0-latest to before 2026.3.0, an authenticated moderator-level user could retrieve post content, topic titles, and usernames from categories they were n...

CVE-2026-33415 Discourse: Improper Access Control in discourse-ai Allows Unauthorized Category Content Exposure

Discourse is an open-source discussion platform. From versions 2026.1.0-latest to before 2026.1.3, 2026.2.0-latest to before 2026.2.2, and 2026.3.0-latest to before 2026.3.0, an authenticated moderator-level user could retrieve post content, topic titles, and usernames from categories they were n...

EUVD-2026-17574

Discourse is an open-source discussion platform. From versions 2026.1.0-latest to before 2026.1.3, 2026.2.0-latest to before 2026.2.2, and 2026.3.0-latest to before 2026.3.0, an authenticated moderator-level user could retrieve post content, topic titles, and usernames from categories they were n...

CVE-2026-33415 Discourse: Improper Access Control in discourse-ai Allows Unauthorized Category Content Exposure

Discourse is an open-source discussion platform. From versions 2026.1.0-latest to before 2026.1.3, 2026.2.0-latest to before 2026.2.2, and 2026.3.0-latest to before 2026.3.0, an authenticated moderator-level user could retrieve post content, topic titles, and usernames from categories they were n...

CVE-2026-27151 Discourse doesn't validate destination topic when moving posts

Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, the moveposts action only checked canmoveposts? on the source topic but never validated write permissions on the destination topic. This allowed TL4 users and category group moderators to move...

CVE-2023-31142

Discourse is an open source discussion platform. Prior to version 3.0.4 of the stable branch and version 3.1.0.beta5 of the beta and tests-passed branches, if a site has modified their general category permissions, they could be set back to the default. This issue is patched in version 3.0.4 of t...

EUVD-2023-35461

Malicious code in bioql PyPI...

BIT-DISCOURSE-2023-31142 Discourse's general category permissions could be set back to default

Discourse is an open source discussion platform. Prior to version 3.0.4 of the stable branch and version 3.1.0.beta5 of the beta and tests-passed branches, if a site has modified their general category permissions, they could be set back to the default. This issue is patched in version 3.0.4 of t...

CVE-2023-5549 Moodle: insufficient capability checks when updating the parent of a course category

Insufficient web service capability checks made it possible to move categories a user had permission to manage, to a parent category they did not have the capability to manage...

PT-2023-32170 · Moodle +7 · Moodle +3

Name of the Vulnerable Software and Affected Versions: No specific software or versions are mentioned in the provided descriptions. Description: The issue is related to insufficient web service capability checks. This allowed users to move categories they had permission to manage to a parent...

CVE-2023-31142 Discourse's general category permissions could be set back to default

Discourse is an open source discussion platform. Prior to version 3.0.4 of the stable branch and version 3.1.0.beta5 of the beta and tests-passed branches, if a site has modified their general category permissions, they could be set back to the default. This issue is patched in version 3.0.4 of t...

PT-2023-23175 · Discourse · Discourse

Name of the Vulnerable Software and Affected Versions: Discourse versions prior to 3.0.4 of the stable branch Discourse versions prior to 3.1.0.beta5 of the beta and tests-passed branches Description: Discourse is an open source discussion platform. If a site has modified their general category...