CVE-2021-45473 — Cross-site Scripting in Mediawiki

CWE-79 — Cross-site Scripting4 documents4 sources
Severity
6.1MEDIUMNVD
EPSS
0.3%
top 44.48%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
MediawikiFedoraproject Fedora
Timeline
PublishedDec 24
Latest updateDec 25

Description

In MediaWiki through 1.37, Wikibase item descriptions allow XSS, which is triggered upon a visit to an action=info URL (aka a page-information sidebar).

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:NExploitability: 2.8 | Impact: 2.7

Affected Packages1 packages

Also affects: Fedora 35

🔴Vulnerability Details

2
GHSA
GHSA-78f2-h8g8-qj93: In MediaWiki through 1↗2021-12-25
▶
OSV
CVE-2021-45473: In MediaWiki through 1↗2021-12-24
▶

📋Vendor Advisories

1
Red Hat
mediawiki: XSS on page information Wikibase central description↗2021-11-30
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