Vulnerability · Published Apr 22, 2021 · Assigned by mitre
CVE-2021-31550
Medium 5.4
In plain English
A medium-severity security flaw in the affected software. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 39% of all known vulnerabilities).
Severity (CVSS NVD)5.4Medium
Exploit odds (30 days)0.4%top 60.7% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
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.
Affected products (as reported)
References
- https://phabricator.wikimedia.org/T270767 x_refsource_MISC
- https://gerrit.wikimedia.org/r/c/mediawiki/extensions/Commentbox/+/651934/ x_refsource_MISC