CVE-2026-27935 Discourse leaks private topic metadata to non-authorized users

Discourse is an open-source discussion platform. Versions prior to 2026.3.0-latest.1, 2026.2.1, and 2026.1.2 have a vulnerability in an API endpoint that discloses private topic metadata of admin users to moderator users even if the moderators do not have access to the private topics. Versions...

CVE-2026-27935 Discourse leaks private topic metadata to non-authorized users

Discourse is an open-source discussion platform. Versions prior to 2026.3.0-latest.1, 2026.2.1, and 2026.1.2 have a vulnerability in an API endpoint that discloses private topic metadata of admin users to moderator users even if the moderators do not have access to the private topics. Versions...

CVE-2026-27935 Discourse leaks private topic metadata to non-authorized users

Discourse is an open-source discussion platform. Versions prior to 2026.3.0-latest.1, 2026.2.1, and 2026.1.2 have a vulnerability in an API endpoint that discloses private topic metadata of admin users to moderator users even if the moderators do not have access to the private topics. Versions...

CVE-2026-27934 Discourse leaks private topic title and post excerpt via user action API endpoint

Discourse is an open-source discussion platform. Versions prior to 2026.3.0-latest.1, 2026.2.1, and 2026.1.2 have a lack of visibility checks with a user action API endpoint that results in disclosure of the title and post excerpt to unauthorized users, leading to information disclosure. Versions...

CVE-2026-27934 Discourse leaks private topic title and post excerpt via user action API endpoint

Discourse is an open-source discussion platform. Versions prior to 2026.3.0-latest.1, 2026.2.1, and 2026.1.2 have a lack of visibility checks with a user action API endpoint that results in disclosure of the title and post excerpt to unauthorized users, leading to information disclosure. Versions...

CVE-2026-27934 Discourse leaks private topic title and post excerpt via user action API endpoint

Discourse is an open-source discussion platform. Versions prior to 2026.3.0-latest.1, 2026.2.1, and 2026.1.2 have a lack of visibility checks with a user action API endpoint that results in disclosure of the title and post excerpt to unauthorized users, leading to information disclosure. Versions...

CVE-2026-27934

Discourse versions prior to 2026.3.0-latest.1, 2026.2.1, and 2026.1.2 expose topic titles and post excerpts through a user action API endpoint to unauthorized users due to missing visibility checks. The issue enables information disclosure with a CVSS 4.0 base score of 8.7 (HIGH) and no user inte...

PT-2026-26371

Name of the Vulnerable Software and Affected Versions Discourse versions prior to 2026.3.0-latest.1 Discourse versions prior to 2026.2.1 Discourse versions prior to 2026.1.2 Description Discourse is an open-source discussion platform. Versions prior to 2026.3.0-latest.1, 2026.2.1, and 2026.1.2...

Discourse 安全漏洞

Discourse is Discourse open source set of open source community discussion platform. The platform includes features such as community , e-mail and chat rooms . Discourse suffers from a security vulnerability that stems from improper privilege authentication, which can be exploited by an attacker ...

GHSA-G375-5WMP-XR78 Admidio is Missing Authorization on Forum Topic and Post Deletion

Summary The forum module in Admidio does not verify whether the current user has permission to delete forum topics or posts. Both the topicdelete and postdelete actions in forum.php only validate the CSRF token but perform no authorization check before calling delete. Any authenticated user with...

Missing Authorization

Overview admidio/admidio is a free open source user management system for websites of organizations and groups. Affected versions of this package are vulnerable to Missing Authorization in the topicdelete and postdelete processes. An attacker can remove any forum topic, including all associated...

Admidio is Missing Authorization on Forum Topic and Post Deletion

Summary The forum module in Admidio does not verify whether the current user has permission to delete forum topics or posts. Both the topicdelete and postdelete actions in forum.php only validate the CSRF token but perform no authorization check before calling delete. Any authenticated user with...

PT-2026-26173

Summary The forum module in Admidio does not verify whether the current user has permission to delete forum topics or posts. Both the topic delete and post delete actions in forum.php only validate the CSRF token but perform no authorization check before calling delete. Any authenticated user wit...

BIT-DISCOURSE-2026-28227 Discourse Vulnerable to Unauthorized Topic Creation in Staff-Only Categories via Topic Timer publish_to_category

Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, TL4 users can publish topics into staff-only categories via the publishtocategory topic timer, bypassing authorization checks. Versions 2025.12.2, 2026.1.1, and 2026.2.0 patch the issue. No known...

BIT-DISCOURSE-2026-28219 Privilege Escalation via Mass Assignment Allows Regular Users to Set Topics as Global Banners

Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, an improper authorization check in the topic management logic allows authenticated users to modify privileged attributes of their topics. By manipulating specific parameters in a PUT or POST...

CVE-2026-28555

wpForo Forum 2.4.14 contains a missing authorization vulnerability that allows authenticated subscribers to close or reopen any forum topic via the wpforocloseajax handler. Attackers submit a valid nonce with an arbitrary topic ID to bypass the moderator permission requirement and disrupt forum...

CVE-2026-28556

wpForo Forum 2.4.14 contains a missing authorization vulnerability that allows authenticated subscribers to move, merge, or split any forum topic via the topicmove, topicmerge, and topicsplit form action handlers. Attackers with a valid form nonce can reorganize arbitrary forum content without...

EUVD-2026-9104

wpForo Forum 2.4.14 contains a missing authorization vulnerability that allows authenticated subscribers to close or reopen any forum topic via the wpforocloseajax handler. Attackers submit a valid nonce with an arbitrary topic ID to bypass the moderator permission requirement and disrupt forum...

EUVD-2026-9105

wpForo Forum 2.4.14 contains a missing authorization vulnerability that allows authenticated subscribers to move, merge, or split any forum topic via the topicmove, topicmerge, and topicsplit form action handlers. Attackers with a valid form nonce can reorganize arbitrary forum content without...

CVE-2026-28555

wpForo Forum 2.4.14 contains a missing authorization vulnerability that allows authenticated subscribers to close or reopen any forum topic via the wpforocloseajax handler. Attackers submit a valid nonce with an arbitrary topic ID to bypass the moderator permission requirement and disrupt forum...