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CVE PROGRAM SOURCE RECORD7.4 High

CVE-2026-49276

Kirby: Self cross-site scripting (self-XSS) in the writer field

Description

Kirby is an open-source content management system. Prior to 4.9.4 and 5.4.4, Kirby sites using the writer field in any blueprint allowed a scripting link to be included as the target of a link or email link in writer mark components, making the target clickable by the user who entered it and enabling self cross-site scripting in the Panel. This issue is fixed in versions 4.9.4 and 5.4.4.

Affected products

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

getkirby kirby

  • < 4.9.4affected
  • >= 5.0.0, < 5.4.4affected

References