CVE-2019-16738: MediaWiki information disclosure

medium Affects mediawiki/core. Feed 2026.10.29.1, updated 2026-10-28; published 2022-05-24; advisory modified 2024-05-19.

MediaWiki information disclosure

Package: mediawiki/core Composer
Affected versions: >=1.31.0 and <1.31.4 or >=1.32.0 and <1.32.4 or >=1.33.0 and <1.33.1
Fixed in: 1.31.4, 1.32.4, 1.33.1
Severity: medium CVSS 5.3
Exploitation: not on CISA KEV · EPSS 2% (78.0th percentile)
Published: 2022-05-24
Source: osv.dev

References

CWE-200 CWE-862

NVD record mediawiki/core advisories

Am I affected?

Find out in one command. phpwarden checks your composer.lock against this advisory and 20,000+ others, ranked by real-world exploitation (CISA KEV + EPSS). Free, offline, open data.

# one-time install
pip install phpwarden

# then
phpwarden deps composer.lock

Or keep it checked automatically: GitHub Action · pre-commit hook · GitLab CI · Laravel artisan command

Install docs How findings are ranked

Related advisories

CVE-2023-45363 high MediaWiki Denial of Service vulnerability same package: mediawiki/core
CVE-2019-12468 critical Wikimedia MediaWiki Incorrect Access Control vulnerability same package: mediawiki/core
CVE-2018-0504 medium Mediawiki information disclosure vulnerability same package: mediawiki/core
CVE-2014-2853 medium Cross-site scripting vulnerability in includes/actions/InfoAction.php same package: mediawiki/core
CVE-2019-12473 high Wikimedia Potential DOS due to slow WatchedItemStore::countVisitingWatchersMultiple same package: mediawiki/core
CVE-2018-13258 medium Mediawiki tarball is missing .htaccess files same package: mediawiki/core