CVE-2026-49276

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.

PUBLISHED Reserved 2026-05-28 | Published 2026-07-09 | Updated 2026-07-10 | Assigner GitHub_M

Problem types

CWE-83: Improper Neutralization of Script in Attributes in a Web Page

Product status

References

github.com/.../kirby/security/advisories/GHSA-rhj6-r49h-5932

github.com/getkirby/kirby/releases/tag/4.9.4

github.com/getkirby/kirby/releases/tag/5.4.4

cve.org (CVE-2026-49276)

nvd.nist.gov (CVE-2026-49276)

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