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cve.new
GHSA-3vjc-5x79-m9r8medium4.8

SilverStripe XXE Vulnerability in CSSContentParser

Check your stack

The advisory, in context

SilverStripe through 4.6.0-rc1 has an XXE Vulnerability in CSSContentParser. A developer utility meant for parsing HTML within unit tests can be vulnerable to XML External Entity (XXE) attacks. When this developer utility is misused for purposes involving external or user submitted data in custom project code, it can lead to vulnerabilities such as XSS on HTML output rendered through this custom code. This is now mitigated by disabling external entities during parsing. (The correct CVE ID year is 2020 [CVE-2020-25817, not CVE-2021-25817]).

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 4.0.0 before 4.7.4

Fixed in 4.7.4

59 explicitly affected versions

4.0.0, 4.0.1, 4.0.1-rc1, 4.0.2, 4.0.3, 4.0.4, 4.0.5, 4.0.6, 4.0.7, 4.1.0, 4.1.0-rc1, 4.1.0-rc2, 4.1.1, 4.1.2, 4.1.3, 4.1.4, 4.1.5, 4.2.0, 4.2.0-beta1, 4.2.1, 4.2.2, 4.2.3, 4.2.4, 4.2.5, 4.3.0, 4.3.0-rc1, 4.3.1, 4.3.2, 4.3.3, 4.3.4, 4.3.5, 4.4.0, 4.4.0-rc1, 4.4.1, 4.4.2, 4.4.3, 4.4.4, 4.4.5, 4.4.6, 4.4.7, 4.5.0, 4.5.0-alpha1, 4.5.0-rc1, 4.5.0-rc2, 4.5.1, 4.5.2, 4.5.3, 4.5.4, 4.6.0, 4.6.0-beta1, 4.6.0-rc1, 4.6.1, 4.6.2, 4.7.0, 4.7.0-beta1, 4.7.0-rc1, 4.7.1, 4.7.2, 4.7.3

View affected-version evidence
{
  "ranges": [
    {
      "events": [
        {
          "introduced": "4.0.0"
        },
        {
          "fixed": "4.7.4"
        }
      ],
      "type": "ECOSYSTEM"
    }
  ],
  "versions": [
    "4.0.0",
    "4.0.1",
    "4.0.1-rc1",
    "4.0.2",
    "4.0.3",
    "4.0.4",
    "4.0.5",
    "4.0.6",
    "4.0.7",
    "4.1.0",
    "4.1.0-rc1",
    "4.1.0-rc2",
    "4.1.1",
    "4.1.2",
    "4.1.3",
    "4.1.4",
    "4.1.5",
    "4.2.0",
    "4.2.0-beta1",
    "4.2.1",
    "4.2.2",
    "4.2.3",
    "4.2.4",
    "4.2.5",
    "4.3.0",
    "4.3.0-rc1",
    "4.3.1",
    "4.3.2",
    "4.3.3",
    "4.3.4",
    "4.3.5",
    "4.4.0",
    "4.4.0-rc1",
    "4.4.1",
    "4.4.2",
    "4.4.3",
    "4.4.4",
    "4.4.5",
    "4.4.6",
    "4.4.7",
    "4.5.0",
    "4.5.0-alpha1",
    "4.5.0-rc1",
    "4.5.0-rc2",
    "4.5.1",
    "4.5.2",
    "4.5.3",
    "4.5.4",
    "4.6.0",
    "4.6.0-beta1",
    "4.6.0-rc1",
    "4.6.1",
    "4.6.2",
    "4.7.0",
    "4.7.0-beta1",
    "4.7.0-rc1",
    "4.7.1",
    "4.7.2",
    "4.7.3"
  ]
}

References