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cve.new
GHSA-p5j5-4j3q-8mq8medium5.1

TYPO3 HTML Sanitizer allows Cross-site Scripting

Check your stack

The advisory, in context

Namespace attributes are not encoded correctly during HTML serialization. This allows bypassing the cross-site scripting prevention mechanism of typo3/html-sanitizer before version 2.3.2.

Credits to Doyensec in collaboration with Claude and Anthropic Research for reporting this vulnerability.

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

Earlier releases before 2.3.2

Fixed in 2.3.2

37 explicitly affected versions

v1.0.0, v1.0.1, v1.0.2, v1.0.3, v1.0.4, v1.0.5, v1.0.6, v1.0.7, v1.5.0, v1.5.1, v1.5.2, v1.5.3, v2.0.0, v2.0.1, v2.0.10, v2.0.11, v2.0.12, v2.0.13, v2.0.14, v2.0.15, v2.0.16, v2.0.2, v2.0.3, v2.0.4, v2.0.5, v2.0.6, v2.0.7, v2.0.8, v2.0.9, v2.1.0, v2.1.1, v2.1.2, v2.1.3, v2.1.4, v2.2.0, v2.3.0, v2.3.1

View affected-version evidence
{
  "ranges": [
    {
      "events": [
        {
          "introduced": "0"
        },
        {
          "fixed": "2.3.2"
        }
      ],
      "type": "ECOSYSTEM"
    }
  ],
  "versions": [
    "v1.0.0",
    "v1.0.1",
    "v1.0.2",
    "v1.0.3",
    "v1.0.4",
    "v1.0.5",
    "v1.0.6",
    "v1.0.7",
    "v1.5.0",
    "v1.5.1",
    "v1.5.2",
    "v1.5.3",
    "v2.0.0",
    "v2.0.1",
    "v2.0.10",
    "v2.0.11",
    "v2.0.12",
    "v2.0.13",
    "v2.0.14",
    "v2.0.15",
    "v2.0.16",
    "v2.0.2",
    "v2.0.3",
    "v2.0.4",
    "v2.0.5",
    "v2.0.6",
    "v2.0.7",
    "v2.0.8",
    "v2.0.9",
    "v2.1.0",
    "v2.1.1",
    "v2.1.2",
    "v2.1.3",
    "v2.1.4",
    "v2.2.0",
    "v2.3.0",
    "v2.3.1"
  ]
}

References