CVE-2026-22254: vulnerability in wintercms winter
Winter Affected by Stored Cross-Site Scripting (XSS) in Asset Manager
Published · Updated
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3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 0epss 0.3%
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.
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:N
Affected products
wintercms · winterRelated CVEs — wintercms winter
In the same product, most dangerous first.
CVE-2023-52085LOWWinter CMS Local File Inclusion through Server Side Template Injection EPSS 30.2%CVE-2023-37269LOWWinter CMS vulnerable to stored XSS through privileged upload of SVG fileEPSS 2.7%CVE-2022-39357HIGHWinter vulnerable to Prototype Pollution in Snowboard frameworkEPSS 1.4%CVE-2026-79774CRITICALWinter CMS before 1.2.13 Twig Sandbox Escape via SecurityPolicyEPSS 0.8%CVE-2026-27591CRITICALWinter: Privilege escalation by authenticated backend usersEPSS 0.8%CVE-2026-63179MEDIUMWinter: Local File Inclusion through @import directives in LESS compilation of backend customizable stylesheets and theme assetsEPSS 0.5%