CVE-2026-30888 PUBLISHED

Discourse has moderator privilege escalation via arbitrary post_id in suspend/silence endpoint

Assigner: GitHub_M
Reserved: 06.03.2026 Published: 20.03.2026 Updated: 20.03.2026

Discourse is an open-source discussion platform. Versions prior to 2026.3.0-latest.1, 2026.2.1, and 2026.1.2 allow a moderator to edit site policy documents (ToS, guidelines, privacy policy) that they are explicitly prohibited from modifying. Versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2 contain a patch. No known workarounds are available.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:N/A:N
CVSS Score: 2.2

Attack Vector	Network	Scope	Unchanged
Attack Complexity	High	Confidentiality Impact	Low
Privileges Required	High	Integrity Impact	None
User Interaction	None	Availability Impact	None

CVSS 3.1

Product Status

Vendor	discourse
Product	discourse
Versions	Version < 2026.3.0-latest.1 is affected Version >= 2026.2.0-latest, < 2026.2.1 is affected Version >= 2026.1.0-latest, < 2026.1.2 is affected

References

https://github.com/discourse/discourse/security/advisories/GHSA-jj9p-p7m6-jq96

Problem Types

CWE-269: Improper Privilege Management CWE