---
id: CVE-2026-79773
title: >-
  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 …
summary: >-
  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 …
severity: medium
cvss: 4.9
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N'
cwe:
  - CWE-22
vendor: wintercms
product: winter
affected:
  - winter < 1.2.13
published: '2026-08-25'
updated: '2026-10-08'
sourceUpdated: '2026-10-08T16:17:44.927'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-79773'
references:
  - url: >-
      https://github.com/wintercms/storm/commit/fd673f4f32140c97c68b1ed705764b819747fbdf
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/wintercms/winter/commit/e09c8d3526f3583cb6c3476a021b885088ecd4bd
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/wintercms/winter/security/advisories/GHSA-2223-f22x-24cq
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/winter-cms-before-local-file-inclusion-via-javascript
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-08-25T16:13:56.491530Z'
epss: 0.00493
epssPercentile: 0.40338
ingestedAt: '2026-10-08T16:52:14.725Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.