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CVE-2026-49276Kirby: 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 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.
7.4 HIGHEPSS 0.43%Not in KEVNVD: Deferred
Overview
Severity
| Score | Severity | Version | Vector String |
|---|---|---|---|
| 7.4 | HIGH | 4.0GitHub_M (CNA) | CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N |
Details
- CVE ID
- CVE-2026-49276
- Status
- Deferred
- Assigner (CNA)
- GitHub_M
- Published
- Jul 9, 2026
- Last modified
- 2026-10-25 17:10 UTC
- Weaknesses
- CWE-83 · Improper Neutralization of Script in Attributes in a Web Page
Affected Products
As published by the CNA in the CVE record.
getkirbykirby2 version ranges
- < 4.9.4
- >= 5.0.0, < 5.4.4