GHSA-3fh5-q6fg-w28q — Prototype pollution in Snowboard framework

The advisory, in context

Impact

The Snowboard framework in affected versions is vulnerable to prototype pollution in the main Snowboard class as well as its plugin loader.

Patches

This issue has been patched in https://github.com/wintercms/winter/commit/2a13faf99972e84c9661258f16c4750fa99d29a1 (for 1.2) and https://github.com/wintercms/winter/commit/bce4b59584abf961e9400af3d7a4fd7638e26c7f (for 1.1) and is available with Winter v1.1.10 and v1.2.1.

Workarounds

If you have not yet upgraded, or are using the 1.1 branch of Winter (1.1.8 or above), you can avoid this issue by following some common security practices for JavaScript, including implementing a content security policy and auditing your scripts.

The 1.0 branch of Winter is not affected, as it does not contain the Snowboard framework.

For more information

If you have any questions or comments about this advisory:

Email us at hello@wintercms.com

Affected packages

Start with the recorded fix for your release branch. Check your installed version and test compatibility before upgrading. Fixing this advisory does not rule out other vulnerabilities in the release.

wintercms/winter Packagist

Ecosystem versions

From 1.1.8 before 1.1.10

Fixed in 1.1.10

2 explicitly affected versions

v1.1.8, v1.1.9

View affected-version evidence

{
  "ranges": [
    {
      "events": [
        {
          "introduced": "1.1.8"
        },
        {
          "fixed": "1.1.10"
        }
      ],
      "type": "ECOSYSTEM"
    }
  ],
  "versions": [
    "v1.1.8",
    "v1.1.9"
  ]
}

wintercms/winter Packagist

Ecosystem versions

From 1.2.0 before 1.2.1

Fixed in 1.2.1

1 explicitly affected versions

v1.2.0

View affected-version evidence

{
  "ranges": [
    {
      "events": [
        {
          "introduced": "1.2.0"
        },
        {
          "fixed": "1.2.1"
        }
      ],
      "type": "ECOSYSTEM"
    }
  ],
  "versions": [
    "v1.2.0"
  ]
}

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Prototype pollution in Snowboard framework