CVE-2026-25491
MEDIUMCVSS Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
Lifecycle Timeline
4Description
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.
Analysis
Stored cross-site scripting in Craft CMS versions 5.0.0-RC1 through 5.8.21 allows authenticated users with high privileges to inject malicious scripts through Entry Type names that are not sanitized when displayed in the Entry Types list. An attacker exploiting this vulnerability can execute arbitrary JavaScript in the browsers of other users viewing the affected list, potentially compromising session data or performing unauthorized actions. …
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Remediation
Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Verify Content-Security-Policy and output encoding.
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External POC / Exploit Code
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GHSA-7pr4-wx9w-mqwr