discourse Vulnerability Advisory Catalog

Total 290 security vulnerabilities recorded for discourse software and firmware.

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Component: discourse

Discourse is an open source discussion platform. In versions prior to 3.5.4, 2025.11.2, 2025.12.1, and 2026.1.0, moderators can access the `top_upload...

๐Ÿ“… 2026-01-28
CVSS 6.5 Dossier →
Component: discourse

Discourse is an open source discussion platform. In versions prior to 3.5.4, 2025.11.2, 2025.12.1, and 2026.1.0, authenticated users can submit crafte...

๐Ÿ“… 2026-01-28
CVSS 6.5 Dossier →
Component: discourse

Discourse is an open source discussion platform. In versions prior to 3.5.4, 2025.11.2, 2025.12.1, and 2026.1.0, non-admin moderators with the `modera...

๐Ÿ“… 2026-01-28
CVSS 6.9 Dossier →
Component: discourse

Discourse is an open source discussion platform. In versions prior to 3.5.4, 2025.11.2, 2025.12.1, and 2026.1.0, users archives are viewable by users ...

๐Ÿ“… 2026-01-28
CVSS 6.5 Dossier →
Component: discourse

Discourse is an open source discussion platform. In versions prior to 3.5.4, 2025.11.2, 2025.12.1, and 2026.1.0, a hostname validation issue in FinalD...

๐Ÿ“… 2026-01-28
CVSS 7.6 Dossier →
Component: discourse

Discourse is an open source discussion platform. In versions prior to 3.5.4, 2025.11.2, 2025.12.1, and 2026.1.0, an endpoint lets any authenticated us...

๐Ÿ“… 2026-01-28
CVSS 5.4 Dossier →
Component: discourse

Discourse is an open source discussion platform. Versions prior to 3.5.4, 2025.11.2, 2025.12.1, and 2026.1.0 have an application level denial of servi...

๐Ÿ“… 2026-01-28
CVSS 4.3 Dossier →
Component: discourse

Discourse is an open source discussion platform. In versions prior to 3.5.4, 2025.11.2, 2025.12.1, and 2026.1.0, some subscription endpoints lack prop...

๐Ÿ“… 2026-01-28
CVSS 7.1 Dossier →
Component: discourse

Discourse is an open source discussion platform. Versions prior to 3.5.4, 2025.11.2, 2025.12.1, and 2026.1.0 have a content-security-policy-mitigated ...

๐Ÿ“… 2026-01-28
CVSS 4.6 Dossier →
Component: discourse

Discourse is an open source discussion platform. A vulnerability present in versions prior to 3.5.4, 2025.11.2, 2025.12.1, and 2026.1.0 affects anyone...

๐Ÿ“… 2026-01-28
CVSS 4.6 Dossier →
Component: discourse

Discourse is an open source discussion platform. Prior to versions 3.5.3, 2025.11.1, and 2025.12.0, an attacker who knows part of a username can find ...

๐Ÿ“… 2025-12-30
CVSS 5.3 Dossier →
Component: discourse

Discourse is an open source discussion platform. Version before 3.6.2 and 3.6.0.beta2, default Cache-Control response header with value no-store, no-c...

๐Ÿ“… 2025-10-28
CVSS 5.3 Dossier →
Component: discourse

Discourse is an open-source community discussion platform. In versions 3.5.0 and below, malicious meta-commands could be embedded in a backup dump and...

๐Ÿ“… 2025-10-01
CVSS 6.8 Dossier →
Component: discourse

Discourse is an open-source community discussion platform. In versions 3.5.0 and below, the Discourse AI suggestion endpoints for topic โ€œTitleโ€, โ€œCate...

๐Ÿ“… 2025-10-01
CVSS 4.3 Dossier →
Component: discourse

Discourse is an open-source community discussion platform. Versions 3.5.0 and below are vulnerable to XSS attacks through parsing and rendering of cha...

๐Ÿ“… 2025-10-01
CVSS 3.5 Dossier →
Component: discourse

Discourse is an open-source discussion platform. Welcome banner user name string for logged in users can be vulnerable to XSS attacks, which affect th...

๐Ÿ“… 2025-08-19
CVSS 5.4 Dossier →
CVE-2025-53102 CRITICAL
Component: discourse

Discourse is an open-source community discussion platform. Prior to version 3.4.7 on the `stable` branch and version 3.5.0.beta.8 on the `tests-passed...

๐Ÿ“… 2025-07-29
CVSS 9.8 Dossier →
Component: discourse

Discourse is an open-source discussion platform. The visibility of posts typed `whisper` is controlled via the `whispers_allowed_groups` site setting....

๐Ÿ“… 2025-06-25
CVSS 7.5 Dossier →
Component: discourse

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...

๐Ÿ“… 2025-06-25
CVSS 8.1 Dossier →
CVE-2025-48877 CRITICAL
Component: discourse

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 ...

๐Ÿ“… 2025-06-09
CVSS 9.8 Dossier →
Component: discourse

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 ...

๐Ÿ“… 2025-06-09
CVSS 7.1 Dossier →
Component: discourse

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 ...

๐Ÿ“… 2025-06-09
CVSS 7.5 Dossier →
Component: discourse

Discourse is an open-source community platform. A data leak vulnerability affects sites deployed between commits 10df7fdee060d44accdee7679d66d778d1136...

๐Ÿ“… 2025-05-05
CVSS 5.8 Dossier →
Component: discourse

Discourse is an open-source discussion platform. Prior to versions 3.4.3 on the stable branch and 3.5.0.beta3 on the beta branch, the users limit for ...

๐Ÿ“… 2025-04-30
CVSS 4.3 Dossier →
Page 5 of 13 (290 Total Records)