CVE-2026-25491: Craft has a Stored XSS in Entry Types Name

Severity: medium (CVSS 4.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2026-02-09 · updated 2026-06-17
Weakness: CWE-79

Description

Craft is a platform for creating digital experiences. From 5.0.0-RC1 to 5.8.21, Craft has a stored XSS via Entry Type names. The name is not sanitized when displayed in the Entry Types list. This vulnerability is fixed in 5.8.22.

Affected products

craftcms cms: from 5.0.0 before 5.8.21 — fixed in 5.8.21

How to fix

Upgrade to a fixed version: craftcms cms 5.8.21. Check the vendor advisory for mitigations.

References

https://github.com/craftcms/cms/commit/cfd6ba0e2ce1a59a02d75cae6558c4ace1ab8bd4
https://github.com/craftcms/cms/releases/tag/5.8.22
https://github.com/craftcms/cms/security/advisories/GHSA-7pr4-wx9w-mqwr

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