What’s Vulnerable › Vulnerabilities

CVE-2016-6335

• Severity: high (CVSS 7.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2017-04-20 · updated 2026-06-17
• Weakness: CWE-200

Description

MediaWiki before 1.23.15, 1.26.x before 1.26.4, and 1.27.x before 1.27.1 does not generate head items in the context of a given title, which allows remote attackers to obtain sensitive information via a parse action to api.php.

Affected products

• Wikimedia Foundation MediaWiki: through 1.23.14; 1.26.0, 1.26.1, 1.26.2, 1.26.3, 1.26.4, 1.27.0

References

• https://bugzilla.redhat.com/show_bug.cgi?id=1369613
• https://lists.wikimedia.org/pipermail/mediawiki-announce/2016-August/000195.html
• https://phabricator.wikimedia.org/T139565
• https://phabricator.wikimedia.org/T139570
• https://bugzilla.redhat.com/show_bug.cgi?id=1369613
• https://lists.wikimedia.org/pipermail/mediawiki-announce/2016-August/000195.html
• https://phabricator.wikimedia.org/T139565
• https://phabricator.wikimedia.org/T139570

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