CVE-2026-100378 Missing permission check in the Translate sandbox doRemind action
Attackers can access restricted functionality in the Translate sandbox due to missing permission checks, requiring an upgrade to the extension.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-100378?
CVE-2026-100378 is a medium-severity missing authorization vulnerability in Wikimedia Foundation Mediawiki - Translate Extension, published on 25 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Missing Authorization vulnerability in Wikimedia Foundation Mediawiki - Translate Extension allows Accessing Functionality Not Properly Constrained by ACLs.
This issue affects Mediawiki - Translate Extension: from * before 1.46.1, 1.45.5, 1.43.10.
Weakness: CWE-862
Which versions are affected by CVE-2026-100378?
How do I fix CVE-2026-100378?
No fix has been published for CVE-2026-100378 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-100378 being exploited?
There is no known exploitation of CVE-2026-100378 in the wild and no public exploit code.
Sources
Also known as GHSA-w84h-xpwq-m99w.