CVE-2026-79773mediumCWE-22

CVE-2026-79773: medium-severity vulnerability in wintercms winter

Winter CMS before 1.2.13 Local File Inclusion via JavaScript

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13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 6.9epss 0.5%
Winter CMS before 1.2.13 contains a local file inclusion vulnerability in the JavascriptImporter filter that allows authenticated users with cms.manage_assets permission to disclose arbitrary server-readable files by placing =include or =require directives in theme JavaScript assets. Attackers can reference files like .env outside the theme directory, and the combined output served through the combine route becomes readable by unauthenticated visitors, exposing application keys and database credentials.
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Affected products
wintercms · winter
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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%