PT-2022-15057 · Mediawiki · Shortdescription

Alistair3149 + 1 · Published 2022-01-24 · Updated 2022-01-28 · CVE-2022-21710

Positive Technologies (AI Summary)

CVSS v3.1

4.7

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions ShortDescription versions prior to 2.3.4

Description A cross-site scripting (XSS) issue exists in the ShortDescription MediaWiki extension. This allows XSS to be triggered on any page or the page with the action=info parameter, which displays the shortdesc property, using the wikitext {{SHORTDESC:<img src=x onerror=alert()>}}.

Recommendations For versions prior to 2.3.4, update to version 2.3.4 to resolve the issue. As a temporary workaround, consider restricting the use of the {{SHORTDESC:}} wikitext until a patch is applied. Avoid using the onerror parameter in the img tag within the ShortDescription wikitext until the issue is resolved.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2022-21710

GHSA-MGCP-QW2R-6832

Affected Products

Shortdescription

References · 7

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/21xxx/CVE-2022-21710.json · Exploit
• 🔥 https://github.com/StarCitizenTools/mediawiki-extensions-ShortDescription/security/advisories/GHSA-mgcp-qw2r-6832 · Exploit
• https://github.com/StarCitizenTools/mediawiki-extensions-ShortDescription/commit/bf568edd892adb8528dcb64f75dddf3eeaccc12c · Patch
• https://github.com/StarCitizenTools/mediawiki-extensions-ShortDescription/commit/7c86644158388620c6c858258cc4e1a8de6e48ea · Patch
• https://osv.dev/vulnerability/CVE-2022-21710 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-21710 · Security Note
• https://t.me/cibsecurity/36156 · Telegram Post