Discourse XSS via Moderation Queue before 2026.1.6, 2026.5.2, 2026.6.1, 2026.7.0
CVE-2026-72727 Published on August 10, 2026
Discourse: Stored XSS in the moderation review queue
Discourse is an open-source discussion platform. Prior to 026.1.6, 2026.5.2, 2026.6.1, and 2026.7.0, a low-privileged user could place crafted content in the moderation review queue that executed stored cross-site scripting when a moderator viewed it on a site with a modified or disabled default Content Security Policy. This issue is fixed in versions 2026.1.6, 2026.5.2, 2026.6.1, and 2026.7.0.
Vulnerability Analysis
CVE-2026-72727 can be exploited with network access. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity and availability.
Weakness Type
What is a XSS Vulnerability?
The software does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
CVE-2026-72727 has been classified to as a XSS vulnerability or weakness.
Products Associated with CVE-2026-72727
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Affected Versions
discourse:- Version < 2026.1.6 is affected.
- Version >= 2026.5.0-latest, < 2026.5.2 is affected.
- Version >= 2026.6.0-latest, < 2026.6.1 is affected.