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TI-2022-06085 Aliases CVE-2022-21710

Cross-site Scripting in ShortDescription extension

Priority MEDIUM 60CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.01 63rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed mediawiki-extensions-ShortDescription (StarCitizenTools): 2.3.4

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
StarCitizenToolsmediawiki-extensions-ShortDescriptionbefore 2.3.42.3.4Patch availableCNA
  • mediawiki-extensions-ShortDescription VendorStarCitizenTools Affected before 2.3.4 Fixed in 2.3.4 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:mediawiki:shortdescription:*:*:*:*:*:mediawiki:*:*before 2.3.4Vulnerablemediawiki
  • cpe:2.3:a:mediawiki:shortdescription:*:*:*:*:*:mediawiki:*:* Versions before 2.3.4 Vulnerable ·mediawiki

Remediation

  • Fix · CNA mediawiki-extensions-ShortDescription (StarCitizenTools) Fixed in 2.3.4

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-21710

References

Exploit 1

Patch 2

  • TI-2025-33331 Citizen Short Description stored XSS vulnerability through wikitext CVSS 3.1HIGH 8.6
  • TI-2025-33330 Citizen is vulnerable to stored XSS attack in the legacy search bar CVSS 3.1HIGH 8.6
  • TI-2025-33086 TabberNeue vulnerable to Stored XSS through wikitext CVSS 3.1HIGH 8.6
  • TI-2025-15572 Cross-site Scripting in TabberTransclude in Extension:TabberNeue CVSS 3.1HIGH 8.6
  • TI-2025-33332 Citizen stored XSS vulnerability through short descriptions CVSS 3.1HIGH 8.6
  • TI-2024-23953 Citizen has a Stored Cross-Site Scripting Vulnerability by editing MediaWiki:Tagline CVSS 3.1MEDIUM 6.5
See all 13 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences