CVE-2022-39357

CRITICAL
Published Oct 26, 20223y ago · Modified Jun 17, 20262w ago
9.8 CVSS 3.1
Critical
Find Similar
Published Oct 26, 2022 3y ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
9.8
Exploitability
3.9
Impact
5.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

No active exploitation signals — not in CISA KEV and no EPSS score yet.

Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-1321

Affected Products 3

VendorProductVersionRange
wintercmswinter1.1.8any
wintercmswinter1.1.9any
wintercmswinter1.2.0any

References 5

  • github.com https://github.com/wintercms/winter/commit/2a13faf99972e84c9661258f16c4750fa99d29a1
    PatchThird Party Advisory
  • github.com https://github.com/wintercms/winter/commit/bce4b59584abf961e9400af3d7a4fd7638e26c7f
    PatchThird Party Advisory
  • github.com https://github.com/wintercms/winter/releases/tag/v1.1.10
    Release NotesThird Party Advisory
  • github.com https://github.com/wintercms/winter/releases/tag/v1.2.1
    Release NotesThird Party Advisory
  • github.com https://github.com/wintercms/winter/security/advisories/GHSA-3fh5-q6fg-w28q
    PatchThird Party Advisory

Remediation

  • github.com https://github.com/wintercms/winter/commit/2a13faf99972e84c9661258f16c4750fa99d29a1
    PatchThird Party Advisory
  • github.com https://github.com/wintercms/winter/commit/bce4b59584abf961e9400af3d7a4fd7638e26c7f
    PatchThird Party Advisory
  • github.com https://github.com/wintercms/winter/security/advisories/GHSA-3fh5-q6fg-w28q
    PatchThird Party Advisory