Bypass of Cross-Site Scripting Protection in typo3/html-sanitizer
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 1.0.7, 2.0.16, 10.4.32, 11.5.16
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
- Exploitation: none
- Automatable: no
- Technical impact: partial
Summary
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.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: partial
- Record last updated
Affected versions
- TYPO3 html-sanitizer
From 1.0.0 · fixed in 1.0.7; From 2.0.0 · fixed in 2.0.16
- typo3/html-sanitizerPackagist
From 1.0.0 · fixed in 1.0.7
- typo3/html-sanitizerPackagist
From 2.0.0 · fixed in 2.0.16
- typo3/cms-corePackagist
From 10.0.0 · fixed in 10.4.32
- typo3/cms-corePackagist
From 11.0.0 · fixed in 11.5.16
- typo3/cmsPackagist
From 10.0.0 · fixed in 10.4.32
- typo3/cmsPackagist
From 11.0.0 · fixed in 11.5.16