CVE-2026-30888

LOW

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

Title source: cna
STIX 2.1

Description

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.

References (1)

Scores

CVSS v3 2.2
EPSS 0.0001
EPSS Percentile 1.5%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-269
Status published
Products (5)
discourse/discourse 2026.3.0
discourse/discourse 2026.1.0 - 2026.1.2
discourse/discourse < 2026.3.0-latest.1
discourse/discourse >= 2026.1.0-latest, < 2026.1.2
discourse/discourse >= 2026.2.0-latest, < 2026.2.1
Published Mar 20, 2026
Tracked Since Mar 20, 2026