CVE-2026-22254 NONE

CVE-2026-22254: Winter Affected by Stored Cross-Site Scripting (XSS) in Asset Manager

Vendor Wintercms
Product winter
Weakness CWE-79 · XSS
Published February 6, 2026
Last update February 9, 2026

CVSS base score

0.0/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction Required
Confidentiality None
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:N

What the vulnerability does

01Description

Winter is a free, open-source content management system (CMS) based on the Laravel PHP framework. Versions of Winter CMS before 1.2.10 allow users with access to the CMS Asset Manager were able to upload SVGs without automatic sanitization. To actively exploit this security issue, an attacker would need access to the Backend with a user account with the following permission: cms.manage_assets. The Winter CMS maintainers strongly recommend that the cms.manage_assets permission only be reserved to trusted administrators and developers in general. This vulnerability is fixed in 1.2.10.

Key dates

02Disclosure timeline

February 6, 2026 CVE published
February 9, 2026 Record updated