CVE-2026-49276 — Kirby: Self cross-site scripting (self-XSS) in the writer field
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 t…
Published: 2026-07-09 · CVSS: 7.4 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7