High 7.4Published Jul 9, 2026

CVE-2026-49276Kirby: Self cross-site scripting (self-XSS) in the writer field

Updated under an hour ago (Oct 27, 2026, 2:50 AM ET)

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It affects getkirby kirby. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for getkirby kirby

Exploited in the last 30 days

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.

CVSS: 7.4 HIGH (v4.0, 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
Weakness (CWE): CWE-83
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Jul 10, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

getkirby kirby getkirby:kirby (from the name)	before 4.9.4; from 5.0.0, < 5.4.4	CNA record

References

References

https://github.com/getkirby/kirby/security/advisories/GHSA-rhj6-r49h-5932	x-refsource-confirm
https://github.com/getkirby/kirby/releases/tag/4.9.4	x-refsource-misc
https://github.com/getkirby/kirby/releases/tag/5.4.4	x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.