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CVE-2026-126563

MEDIUM CVSS: 6.1 Published: 2026-11-11 Modified: 2026-11-11

Description

Semantic MediaWiki 2.4.0 before 7.4.1 contains a reflected cross-site scripting vulnerability in TimeValueFormatter::getCaptionFromFreeFormat(), which emits free-format date captions in HTML without escaping. Unauthenticated attackers can craft a Special:Ask URL with HTML markup in a date printout format (#-F[...]) to execute script in a logged-in victim's browser session.

Affected Platforms

Unknown

Weakness Type

CWE-79

References