CVE-2022-39194 Denial of service in n/a
Insufficient validation in MediaWiki GrowthExperiments extension allows attackers to cause site unavailability via specific actions like page moves.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2022-39194?
CVE-2022-39194 is a medium-severity denial of service vulnerability in Mediawiki Mediawiki, published on 2 Sep 2022. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
An issue was discovered in the MediaWiki through 1.38.2. The community configuration pages for the GrowthExperiments extension could cause a site to become unavailable due to insufficient validation when certain actions (including page moves) were performed.
Weakness: CWE-400
Which versions are affected by CVE-2022-39194?
1 open source package ship an affected version, including mediawiki. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
mediawiki Bitnami | All versions | 1.38.3 |
Products include Mediawiki Mediawiki.
How do I fix CVE-2022-39194?
Upgrade mediawiki to 1.38.3 or later.
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-2022-39194 being exploited?
There is no known exploitation of CVE-2022-39194 in the wild and no public exploit code.
Other vulnerabilities in Mediawiki Mediawiki
Sources
Also known as BIT-mediawiki-2022-39194, GHSA-9vcx-9hhx-gwhw.