CVE-2021-30157
MEDIUM6.1EPSS 0.73%Published: 4/6/2021Modified: 4/28/2026
Description
An issue was discovered in MediaWiki before 1.31.12 and 1.32.x through 1.35.x before 1.35.2. On ChangesList special pages such as Special:RecentChanges and Special:Watchlist, some of the rcfilters-filter-* label messages are output in HTML unescaped, leading to XSS.
Affected packages (2)
- Bitnami/mediawikifrom 0, < 1.31.12, >= 1.32.0, < 1.35.2
- Debian/mediawikifrom 0, < 1:1.35.2-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
References (7)
- ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2021-30157
- WEBhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/26UJGHF7LJDOCQN6A3Z4PM7PYRKENJHE/
- WEBhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2OMSV7B2TCFBOCICN3B4SMQP5HVRJQIT/
- WEBhttps://nvd.nist.gov/vuln/detail/CVE-2021-30157
- WEBhttps://phabricator.wikimedia.org/T278058
- WEBhttps://security.gentoo.org/glsa/202107-40
- WEBhttps://www.debian.org/security/2021/dsa-4889