CVE-2026-30888 Discourse has moderator privilege escalation via arbitrary post_id in suspend/silence endpoint
Moderators can escalate privileges to edit restricted site policy documents, requiring administrators to apply the latest security patches.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-30888?
CVE-2026-30888 is a low-severity vulnerability in Discourse Discourse, published on 20 Mar 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official 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.
Weakness: CWE-269
Which versions are affected by CVE-2026-30888?
1 open source package ship an affected version, including discourse. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
discourse Bitnami | All versions | 2026.3.0 |
Products include Discourse Discourse.
How do I fix CVE-2026-30888?
Upgrade discourse to 2026.3.0 or later.
Is CVE-2026-30888 being exploited?
There is no known exploitation of CVE-2026-30888 in the wild and no public exploit code.
Other vulnerabilities in Discourse Discourse
- CVE-2021-41163 RCE via malicious SNS subscription payload
- CVE-2022-36066 Discourse vulnerable to RCE via admins uploading maliciously zipped file
- CVE-2022-39356 Discourse user account takeover via email and invite link
- CVE-2023-22468 Discourse vulnerable to Cross-site Scripting in local oneboxes
- CVE-2026-27934 Discourse leaks private topic title and post excerpt via user action API endpoint
Sources
Also known as BIT-discourse-2026-30888, GHSA-jj9p-p7m6-jq96.