# CVE-2026-49276

## Summary

- **CVE ID:** CVE-2026-49276
- **Severity:** HIGH
- **CVSS Score:** 7.4 (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)
- **CWE:** CWE-83
- **Published:** Jul 9, 2026
- **Last Modified:** Jul 10, 2026

## 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

- getkirby — kirby (< 4.9.4)
- getkirby — kirby (>= 5.0.0, < 5.4.4)

## References

- [CNA](https://github.com/getkirby/kirby/security/advisories/GHSA-rhj6-r49h-5932)
- [CNA](https://github.com/getkirby/kirby/releases/tag/4.9.4)
- [CNA](https://github.com/getkirby/kirby/releases/tag/5.4.4)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.43%
- **EPSS Percentile:** 36.5

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._