CVE-2023-45363
HIGH7.5EPSS 11.0%MediaWiki Denial of Service vulnerability
Published: 10/9/2023Modified: 4/28/2026
Description
An issue was discovered in ApiPageSet.php in MediaWiki before 1.35.12, 1.36.x through 1.39.x before 1.39.5, and 1.40.x before 1.40.1. It allows attackers to cause a denial of service (unbounded loop and RequestTimeoutException) when querying pages redirected to other variants with redirects and converttitles set.
Affected packages (3)
- Bitnami/mediawikifrom 0, < 1.35.12, >= 1.36.0, < 1.39.5, >= 1.40.0, < 1.40.1
- Debian/mediawikifrom 0, < 1:1.35.13-1~deb11u1
- Packagist/mediawiki/corefrom 0, < 1.35.12
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N |
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
References (7)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2023-45363
- ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2023-45363
- PATCHhttps://github.com/wikimedia/mediawiki
- WEBhttps://github.com/wikimedia/mediawiki/commit/24c3ef2474c6daa20ed48168d46196a55346dfd8
- WEBhttps://lists.debian.org/debian-lts-announce/2023/11/msg00027.html
- WEBhttps://phabricator.wikimedia.org/T333050
- WEBhttps://www.debian.org/security/2023/dsa-5520