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CVE PROGRAM SOURCE RECORD5.1 Medium

CVE-2026-104466

YesWiki before 4.6.7 Stored XSS via Wakka Markdown Image src Attribute

Description

YesWiki before 4.6.7 contains a stored cross-site scripting vulnerability in formatters/wakka.php that allows users who can edit pages or post comments to inject event handlers by placing quotes in markdown image URLs. Attackers can store a crafted markdown image whose src breaks out of the attribute to add an onerror handler, executing JavaScript in viewers' browsers, including administrators.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

YesWiki yeswiki

Default version status: unaffected

  • 0 to < 4.6.7affected
  • 4.6.7unaffected

References