Quick answers
- Is CVE-2026-96872 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-96872 being exploited in the wild.
- How severe is CVE-2026-96872?
- Informational severity, published 23 September 2026.
- Which products and versions are affected?
- Wikimedia Foundation Mediawiki WikiLambda extension before 1.47.0.
- Is there a fix for CVE-2026-96872?
- 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-2026-96872 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-96872?
- Check whether you run Wikimedia Foundation Mediawiki WikiLambda extension 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 access control vulnerability exists in the WikiLambda extension where permission checks are not properly enforced before allowing access to sensitive functionality. The vulnerability affects versions before 1.47.0 and can be exploited on Linux, macOS, and Windows systems running affected versions of MediaWiki with the extension enabled. The exact attack vector and preconditions are not fully documented in available references.
Affected products
- Wikimedia Foundation MediaWiki WikiLambda Extension before 1.47.0
Timeline
- 2026-09-23: disclosed