What is CVE-2022-29904?

CVE-2022-29904 is a critical-severity vulnerability in MediaWiki, classified under SQL Injection. CVSS score: 9.8/10. Published 2022-04-29.

How severe is CVE-2022-29904?

Critical severity. CVSS v3 base score is 9.8 out of 10.

SQL Injection in MediaWiki

CVE-2022-29904

The SemanticDrilldown extension for MediaWiki through 1.37.2 (before e688bdba6434591b5dff689a45e4d53459954773) allows SQL injection with certain '-' and '_' constraints.

Vulnerability class: SQL Injection

Published 2022-04-29 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.168 (96.9th percentile), scored 2026-09-29.

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 97th percentile — 96.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.168 · newest: 0.168 · change: 0.000

Affected products

MediaWiki

Weakness classification (CWE)

CWE-89 — SQL Injection

References

phabricator.wikimedia.org/T306463 (Exploit, Patch, Third Party Advisory)
gerrit.wikimedia.org/r/c/mediawiki/extensions/SemanticDrilldown/+/785213 (Vendor Advisory)

Frequently asked questions

What is CVE-2022-29904?: CVE-2022-29904 is a critical-severity vulnerability in MediaWiki, classified under SQL Injection. CVSS score: 9.8/10. Published 2022-04-29.
How severe is CVE-2022-29904?: Critical severity. CVSS v3 base score is 9.8 out of 10.