CVE-2025-32076 Evil regex used to process user-provided data in VisualData
An attacker can cause a denial of service by submitting data that triggers inefficient regular expression processing in the VisualData extension.
- 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-2025-32076?
CVE-2025-32076 is a medium-severity denial of service vulnerability in The Wikimedia Foundation Mediawiki - Visual Data Extension, published on 11 Apr 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Improper Input Validation vulnerability in The Wikimedia Foundation Mediawiki - Visual Data Extension allows HTTP DoS.This issue affects Mediawiki - Visual Data Extension: from 1.39 through 1.43.
Weakness: CWE-20
Which versions are affected by CVE-2025-32076?
How do I fix CVE-2025-32076?
No fix has been published for CVE-2025-32076 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2025-32076 being exploited?
There is no known exploitation of CVE-2025-32076 in the wild and no public exploit code.
Sources
Also known as GHSA-grw4-4pm5-246x.