CVE-2026-96879 "Checked by" label in page history should not be shown if the underlying review log entry is suppressed"
Attackers can view suppressed review log entries via the page history 'Checked by' label, exposing sensitive moderation data.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-96879?
CVE-2026-96879 is a medium-severity vulnerability in The Wikimedia Foundation Mediawiki - FlaggedRevs extension, published on 25 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Improper removal of sensitive information before storage or transfer vulnerability in Wikimedia Foundation's Mediawiki - FlaggedRevs extension through 1.46.0.
Weakness: CWE-212
Which versions are affected by CVE-2026-96879?
How do I fix CVE-2026-96879?
No fix has been published for CVE-2026-96879 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-96879 being exploited?
There is no known exploitation of CVE-2026-96879 in the wild and no public exploit code.
Sources
Also known as GHSA-xxh4-xg3q-g2r6.