What’s Vulnerable › Vulnerabilities

CVE-2015-6734

• Severity: medium (CVSS 4.3 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2015-09-01 · updated 2026-06-17
• Weakness: CWE-79

Description

Cross-site scripting (XSS) vulnerability in contrib/cssgen.php in the GeSHi, as used in the SyntaxHighlight_GeSHi extension and MediaWiki before 1.23.10, 1.24.x before 1.24.3, and 1.25.x before 1.25.2, allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.

Affected products

• Wikimedia Foundation MediaWiki: through 1.23.9; 1.24.0, 1.24.1, 1.24.2, 1.25.0, 1.25.1

References

• http://lists.fedoraproject.org/pipermail/package-announce/2015-August/165193.html
• http://www.openwall.com/lists/oss-security/2015/08/12/6
• http://www.openwall.com/lists/oss-security/2015/08/27/6
• http://www.securityfocus.com/bid/76361
• https://lists.wikimedia.org/pipermail/mediawiki-announce/2015-August/000179.html
• https://phabricator.wikimedia.org/T108198
• https://security.gentoo.org/glsa/201510-05
• http://lists.fedoraproject.org/pipermail/package-announce/2015-August/165193.html
• http://www.openwall.com/lists/oss-security/2015/08/12/6
• http://www.openwall.com/lists/oss-security/2015/08/27/6
• http://www.securityfocus.com/bid/76361
• https://lists.wikimedia.org/pipermail/mediawiki-announce/2015-August/000179.html

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