Resource exhaustion in MediaWiki

CVE-2022-39194

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.

Vulnerability class: DoS (Denial of Service)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.010 (61.3th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 61st percentile — 61.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2022-39194: held from 0.010 to 0.010.

EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: +0.000

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2022-39194?
CVE-2022-39194 is a medium-severity vulnerability in MediaWiki, classified under Uncontrolled Resource Consumption. CVSS score: 4.9/10. Published 2022-09-02.
How severe is CVE-2022-39194?
Medium severity. CVSS v3 base score is 4.9 out of 10.