PT-2021-19421

CVE-2021-31550

Published

2021-04-22

Updated

2024-03-06

Description by

CVSS 3.1

5.4

Medium

MetricsAV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions MediaWiki versions through 1.35.2 CommentBox extension for MediaWiki versions through 1.35.2

Description An issue was discovered that allows a malicious actor to introduce XSS payloads into various layers via crafted configuration variables.

Recommendations For MediaWiki versions through 1.35.2, update to a version that contains a fix for this issue. For CommentBox extension for MediaWiki versions through 1.35.2, update to a version that contains a fix for this issue.

Exploitability

Fix

Impacts

Researchers

Rhinosf1

Vendors

Affected products

Weakness enumeration

CWE-79: Improper Neutralization of Input During Web Page Generation (\'Cross-site Scripting\')

Related identifiers

CVE-2021-31550

ALT-PU-2021-1991