| Package | Affected versions | Patched versions |
|---|---|---|
| typo3/html-sanitizer | < 2.3.2 | 2.3.2 |
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.
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