CVE-2026-32257

Published: Aug 26, 2026Modified: Aug 27, 2026

8.1

Vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:N

Exploitability: 1.7 / Impact: 5.8

Source: security-advisories@github.com (Secondary)

Description

Winter is a free, open-source content management system (CMS) based on the Laravel PHP framework. Prior to 1.2.13, custom CSS supplied through the Brand Settings Styles field by a backend user with the backend.manage_branding permission is compiled by the LESS parser and rendered without sanitization on every backend page, allowing stored cross-site scripting against backend users. This issue is fixed in version 1.2.13.

Related CWEs

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

References (2)

https://github.com/wintercms/winter/commit/d28f0b9474af79cfaa80eeb9d691f7a7c4469720

Source: security-advisories@github.com

https://github.com/wintercms/winter/security/advisories/GHSA-v7cf-8gh9-gxmj

Source: security-advisories@github.com

Timeline

No history available yet.