cve.bz

CVE-2021-31550

5.4 mediumEPSS 0.4%

Medium (5.4) in mediawiki mediawiki. EPSS 0.4% chance of exploitation in the next 30 days.

An issue was discovered in the CommentBox extension for MediaWiki through 1.35.2. Via crafted configuration variables, a malicious actor could introduce XSS payloads into various layers.

Severity

CVSS 3.1

5.4 medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
EPSS
0.4% chance of exploitation in the next 30 days; higher than 39% of CVEs (scores of 2026-10-31)
CWE
CWE-79
Published
Modified
Record from
the NVD, synced

Affected

References

Check your stackJSON