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cve.new
GHSA-cx45-565q-6qx8medium5.4

SilverStripe Subsite weakens file permissions

Check your stack

The advisory, in context

The subsites module can weaken edit restrictions on some files and allow a malicious user to edit files they do not have edit rights to.

This only affects projects with the subsites module installed. Regression testing should focus on custom file logic.

Be advised that this is not a case of a user being able to edit a file in subsites they do not have access to. As a reminder, all separation of content achieved with the subsites module should be viewed as cosmetic and not appropriate for security-critical applications.

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.

Ecosystem versions

From 2.0.0 before 2.6.1

Fixed in 2.6.1

16 explicitly affected versions

2.0.0, 2.0.1, 2.0.2, 2.1.0, 2.1.1, 2.2.0, 2.2.1, 2.2.2, 2.3.0, 2.3.1, 2.3.2, 2.3.3, 2.4.0, 2.4.1, 2.5.0, 2.6.0

View affected-version evidence
{
  "ranges": [
    {
      "events": [
        {
          "introduced": "2.0.0"
        },
        {
          "fixed": "2.6.1"
        }
      ],
      "type": "ECOSYSTEM"
    }
  ],
  "versions": [
    "2.0.0",
    "2.0.1",
    "2.0.2",
    "2.1.0",
    "2.1.1",
    "2.2.0",
    "2.2.1",
    "2.2.2",
    "2.3.0",
    "2.3.1",
    "2.3.2",
    "2.3.3",
    "2.4.0",
    "2.4.1",
    "2.5.0",
    "2.6.0"
  ]
}

References