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