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Case File

CVE-2022-21710

MEDIUM · CVSS 4.7 EPSS 1.00% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2022-01-24 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 4.7. Public exploit code or proof-of-concept references have been detected in its references.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2022-21710
Severity
MEDIUM
CVSS
4.7
EPSS
1.00%

Original NVD Description

ShortDescription is a MediaWiki extension that provides local short description support. A cross-site scripting (XSS) vulnerability exists in versions prior to 2.3.4. On a wiki that has the ShortDescription enabled, XSS can be triggered on any page or the page with the action=info parameter, which displays the shortdesc property. This is achieved using the wikitext `{{SHORTDESC:<img src=x onerror=alert()>}}`. This issue has a patch in version 2.3.4.

Related CVEs

Other vulnerabilities affecting the same vendor(s)