CVE-2022-39357

HIGH

Winter < 1.1.10 - Prototype Pollution

Title source: rule
STIX 2.1

Description

Winter is a free, open-source content management system based on the Laravel PHP framework. The Snowboard framework in versions 1.1.8, 1.1.9, and 1.2.0 is vulnerable to prototype pollution in the main Snowboard class as well as its plugin loader. The 1.0 branch of Winter is not affected, as it does not contain the Snowboard framework. This issue has been patched in v1.1.10 and v1.2.1. As a workaround, one may avoid this issue by following some common security practices for JavaScript, including implementing a content security policy and auditing scripts.

Scores

CVSS v3 8.1
EPSS 0.0109
EPSS Percentile 78.0%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-1321
Status published
Products (4)
wintercms/winter 1.1.8
wintercms/winter 1.1.9
wintercms/winter 1.2.0
wintercms/winter 1.1.8 - 1.1.10Packagist
Published Oct 26, 2022
Tracked Since Feb 18, 2026