CVE-2021-30157
6.1
MEDIUM
CVSS 3.1
EPSS 0.73%
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.
How to fix CVE-2021-30157
To remediate CVE-2021-30157, upgrade the affected package to a fixed version below.
- Bitnami/mediawiki—upgrade to 1.31.12 or later
- —upgrade to 1:1.35.2-1 or later
Is CVE-2021-30157 being exploited?
Low — EPSS is 0.7%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 1.31.12, >= 1.32.0, < 1.35.2
- from 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)
- ADVISORYsecurity-tracker.debian.org/tracker/CVE-2021-30157
- WEBlists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/26UJGHF7LJDOCQN6A3Z4PM7PYRKENJHE/
- WEBlists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2OMSV7B2TCFBOCICN3B4SMQP5HVRJQIT/
- WEB