CVE-2025-32079 Saving the right content to MediaWiki:GrowthMentors.json can take down the site
Attackers can cause a site-wide denial of service by saving specific content to the GrowthMentors.json configuration file in MediaWiki.
- 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-2025-32079?
CVE-2025-32079 is a medium-severity denial of service vulnerability in Mediawiki - GrowthExperiments, published on 11 Apr 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Improper Input Validation vulnerability in The Wikimedia Foundation Mediawiki - GrowthExperiments allows HTTP DoS.This issue affects Mediawiki - GrowthExperiments: from 1.39 through 1.43.
Weakness: CWE-20
Which versions are affected by CVE-2025-32079?
How do I fix CVE-2025-32079?
No fix has been published for CVE-2025-32079 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-2025-32079 being exploited?
There is no known exploitation of CVE-2025-32079 in the wild and no public exploit code.
Sources
Also known as GHSA-cr5h-9jcq-9f6f.