GHSA-gqqf-g5r7-84vf: TYPO3 HTML Sanitizer Bypasses Cross-Site Scripting Protection

medium Affects typo3/cms-core. Feed 2026.10.29.4, updated 2026-10-29; published ; advisory modified .

TYPO3 HTML Sanitizer Bypasses Cross-Site Scripting Protection

Package
typo3/cms-core Composer
Affected versions
>=7.0.0 and <7.6.58 or >=8.0.0 and <8.7.48 or >=9.0.0 and <9.5.37 or >=10.0.0 and <10.4.32 or >=11.0.0 and <11.5.16
Fixed in
7.6.58, 8.7.48, 9.5.37, 10.4.32, 11.5.16
Severity
medium  CVSS 6.1
Exploitation
not on CISA KEV
Published
2022-09-15
Source
osv.dev

References

NVD recordtypo3/cms-core advisories

Am I affected?

Find out in one command. phpwarden checks your composer.lock against this advisory and 20,000+ others, ranked by real-world exploitation (CISA KEV + EPSS). Free, offline, open data.

# PHP projects (recommended)
composer require --dev phpwarden/phpwarden
# then
vendor/bin/phpwarden deps composer.lock

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