CVE-2026-79773

Winter CMS before 1.2.13 Local File Inclusion via JavaScript

MEDIUM
4.9
CVSS Score
Published: August 25, 2026 at 03:16 PM UTC
Updated: October 8, 2026 at 04:17 PM UTC
1 product affected across 1 vendorWinter

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Severity
MEDIUM4.9
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

0 ≤ v < 1.2.130
Vendor states this is fixed in 1.2.13 (unaffected)

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.9MEDIUMVulnCheck
Attack Vector
NETWORK
Complexity
LOW
Privileges
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-22

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