The typo3/html-sanitizer package is an HTML sanitizer, written in PHP, aiming to provide XSS-safe markup based on explicitly allowed tags, attributes and values. Due to a parsing issue in the upstream package `masterminds/html5`, malicious markup used in a sequence with special HTML comments cannot be filtered and sanitized. This allows for a bypass of the cross-site scripting mechanism of `typo3/html-sanitizer`. This issue has been addressed in versions 1.0.7 and 2.0.16 of the `typo3/html-sanitizer` package. Users are advised to upgrade. There are no known workarounds for this issue.
| Package (Ecosystem) | Introduced | Fixed | Limit |
|---|---|---|---|
| typo3/html-sanitizer(Packagist) | 1.0.0 | 1.0.7 | N/A |
| typo3/html-sanitizer(Packagist) | 2.0.0 | 2.0.16 | N/A |
| typo3/cms-core(Packagist) | 10.0.0 | 10.4.32 | N/A |
| typo3/cms-core(Packagist) | 11.0.0 | 11.5.16 | N/A |
| typo3/cms(Packagist) | 10.0.0 | 10.4.32 | N/A |
| typo3/cms(Packagist) | 11.0.0 | 11.5.16 | N/A |
CVSS Metrics
