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updated 5 months, 4 weeks ago by @LeSuisse Activity log
  • Created suggestion
  • @LeSuisse ignored
    5 packages
    • discourse-mail-receiver
    • python312Packages.pydiscourse
    • python313Packages.pydiscourse
    • python314Packages.pydiscourse
    • grafanaPlugins.grafana-discourse-datasource
  • @LeSuisse accepted
  • @LeSuisse published on GitHub
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 `move_posts` action only checked `can_move_posts?` on the source topic but never validated write permissions on the destination topic. This allowed TL4 users and category group moderators to move posts into topics in categories where they lack posting privileges (e.g., read-only categories or categories with group-restricted write access). Versions 2025.12.2, 2026.1.1, and 2026.2.0 patch the issue. No known workarounds are available.

Affected products

discourse
  • ==>= 2026.1.0-latest, < 2026.1.1
  • ==< 2025.12.2
  • ==>= 2026.2.0-latest, < 2026.2.0

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Ignored packages (5)

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Upstream advisory: https://github.com/discourse/discourse/security/advisories/GHSA-m69h-9m2g-cfgw
Untriaged
Permalink CVE-2025-67723
4.6 MEDIUM
  • CVSS version (CVSS): 3.1
  • Attack Vector (AV): Network (N)
  • Attack Complexity (AC): Low (L)
  • Privileges Required (PR): Low (L)
  • User Interaction (UI): Required (R)
  • Scope (S): Unchanged (U)
  • Confidentiality (C): None (N)
  • Integrity (I): Low (L)
  • Availability (A): Low (L)
  • Modified Attack Vector (MAV): Network (N)
  • Modified Attack Complexity (MAC): Low (L)
  • Modified Privileges Required (MPR): Low (L)
  • Modified User Interaction (MUI): Required (R)
  • Modified Confidentiality (MC): None (N)
  • Modified Scope (MS): Unchanged (U)
  • Modified Integrity (MI): Low (L)
  • Modified Availability (MA): Low (L)
updated 6 months, 2 weeks ago by @jopejoe1 Activity log
  • Created suggestion
  • @jopejoe1 ignored
    4 packages
    • discourse-mail-receiver
    • python312Packages.pydiscourse
    • python313Packages.pydiscourse
    • grafanaPlugins.grafana-discourse-datasource
Discourse vulnerable to stored Cross-site Scripting via Katex in discourse-math plugin

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 cross-site scriptinv vulnerability on the Discourse Math plugin when using its KaTeX variant. This issue is patched in versions 3.5.4, 2025.11.2, 2025.12.1, and 2026.1.0. As a workaround, the Discourse Math plugin can be disabled, or the Mathjax provider can be used instead of KaTeX.

Affected products

discourse
  • ==>= 2025.12.0-latest, < 2025.12.1
  • ==>= 2026.1.0-latest, < 2026.1.0
  • ==>= 2025.11.0-latest, < 2025.11.2
  • ==< 3.5.4

Matching in nixpkgs

pkgs.discourse

Open source discussion platform

Ignored packages (4)

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