CVE-2026-79773
Winter CMS before 1.2.13 Local File Inclusion via JavaScript
CVSS Score
4.9
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-22 |
| Vendor | wintercms |
| Product | winter |
| Published | Aug 25, 2026 |
| Last Updated | Aug 25, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Affected Versions
wintercms / winter
0 < 1.2.13
References
github.com: https://github.com/wintercms/winter/security/advisories/GHSA-2223-f22x-24cq github.com: https://github.com/wintercms/winter/commit/e09c8d3526f3583cb6c3476a021b885088ecd4bd github.com: https://github.com/wintercms/winter/commit/fd673f4f32140c97c68b1ed705764b819747fbdf vulncheck.com: https://www.vulncheck.com/advisories/winter-cms-before-local-file-inclusion-via-javascript
Credits
🔍 elmahy111