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HIGH8.1

GHSA-3fh5-q6fg-w28q

Prototype pollution in Snowboard framework

Quick fix

GHSA-3fh5-q6fg-w28q — wintercms/winter: upgrade to the fixed version with the command below.

composer require wintercms/winter:^1.1.10

Details

### 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](https://developer.mozilla.org/en-US/docs/Web/HTTP/CSP) 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](mailto:hello@wintercms.com)

Are you affected?

Enter the version of the package you're using.

Affected packages

Packagist/wintercms/winter
Introduced in: 1.1.8Fixed in: 1.1.10
Fixcomposer require wintercms/winter:^1.1.10
Packagist/wintercms/winter
Introduced in: 1.2.0Fixed in: 1.2.1
Fixcomposer require wintercms/winter:^1.2.1

References