CVE-2026-104451 YesWiki before 4.6.7 CSRF Page Revision Restore via RevisionsHandler
Attackers can trick authenticated users into restoring old page revisions, overwriting current content with stale or vandalized data.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-104451?
CVE-2026-104451 is a medium-severity vulnerability in yeswiki, published on 2 Oct 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
YesWiki before 4.6.7 contains a cross-site request forgery vulnerability in RevisionsHandler that allows attackers to restore old page revisions through GET requests lacking CSRF token validation. Attackers can lure write-capable users into a top-level navigation with the restoreRevisionId parameter, silently overwriting current page content with stale or vandalized revisions.
Weakness: CWE-352
Which versions are affected by CVE-2026-104451?
How do I fix CVE-2026-104451?
No fix has been published for CVE-2026-104451 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-104451 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-104451 exists.
Sources
Also known as GHSA-q9vm-p57f-8mmp, GHSA-vj5g-974q-7ff3.