Quick answers
- Is CVE-2026-33398 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-33398 being exploited in the wild.
- How severe is CVE-2026-33398?
- Informational severity, with a CVSS score of 7.1, published 2 June 2026.
- Which products and versions are affected?
- NamelessMC 2.2.4.
- Is there a fix for CVE-2026-33398?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-33398 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-33398?
- Check whether you run NamelessMC at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
An improper authorization vulnerability (CWE-285) exists in the `get_quotes.php` module of NamelessMC version 2.2.4. While the standard topic view enforces Access Control Lists (ACLs), the `get_quotes` endpoint only verifies that a user is logged in before fetching post content via an attacker-supplied `post` ID. Because the backend helper in `Forum.php` fails to validate forum or topic-level permissions, a low-privileged user can enumerate post IDs to leak content and author metadata from restricted, hidden, or staff-only forums. This issue is resolved in version 2.2.5.
Affected products
- NamelessMC NamelessMC 2.2.4
Timeline
- 2026-05-31: advisory: GitHub Security Advisory published
- 2026-06-02: disclosed: CVE published to NVD