CVE Catalog

CVE-2026-58030

MediumCVSS 6.1
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.23%

14th percentile - higher than 14% of all known CVEs

Summary

An XSS vulnerability in the SyntaxHighlight_GeSHi MediaWiki extension allows an attacker to inject malicious scripts due to improper input neutralization. The issue affects the includes/SyntaxHighlight.php file and versions before 1.46.0, 1.45.4, 1.44.6, and 1.43.9.

Risk Assessment

An attacker can exploit this vulnerability to execute arbitrary JavaScript in the victim's browser, potentially leading to session theft, page defacement, or credential theft.

Recommendation

Immediately update the SyntaxHighlight_GeSHi extension to version 1.46.0, 1.45.4, 1.44.6, or 1.43.9 depending on your MediaWiki branch.

Related vulnerabilities

Original NVD description (English source)

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation SyntaxHighlight_GeSHi. This vulnerability is associated with program files includes/SyntaxHighlight.Php. This issue affects SyntaxHighlight_GeSHi: from * before 1.46.0, 1.45.4, 1.44.6, 1.43.9.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS