PT-2026-26539 · Discourse · Discourse

Lowjomaxr · Published 2026-03-20 · Updated 2026-03-27 · CVE-2026-30888

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:N

Name of the Vulnerable Software and Affected Versions Discourse versions prior to 2026.3.0-latest.1 Discourse versions prior to 2026.2.1 Discourse versions prior to 2026.1.2

Description Discourse is an open-source discussion platform. Moderators could edit site policy documents – Terms of Service, guidelines, and privacy policy – despite being explicitly prohibited from doing so.

Recommendations Update to Discourse version 2026.3.0-latest.1 or later. Update to Discourse version 2026.2.1 or later. Update to Discourse version 2026.1.2 or later.

Exploit

Fix

Improper Privilege Management

Weakness Enumeration

CWE-269

Related Identifiers

BIT-DISCOURSE-2026-30888

CVE-2026-30888

GHSA-JJ9P-P7M6-JQ96

Affected Products

Discourse

References · 7

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/30xxx/CVE-2026-30888.json · Exploit
• https://github.com/discourse/discourse/security/advisories/GHSA-jj9p-p7m6-jq96 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-30888 · Security Note
• https://osv.dev/vulnerability/BIT-discourse-2026-30888 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2026-30888 · Vendor Advisory
• https://twitter.com/CVEnew/status/2034841429009473869 · Twitter Post
• https://twitter.com/VulmonFeeds/status/2034915804223795606 · Twitter Post