MEDIUM5.4
GHSA-4j77-gg36-9864
Cross-Site Scripting in TYPO3 CMS Link Handling
Quick fix
GHSA-4j77-gg36-9864 — typo3/cms-core: upgrade to the fixed version with the command below.
composer require typo3/cms-core:^10.4.2Details
It has been discovered that link tags generated by `typolink` functionality are vulnerable to cross-site scripting - properties being assigned as HTML attributes have not been parsed correctly.
Update to TYPO3 versions 9.5.17 or 10.4.2 that fix the problem described.
### References * https://typo3.org/security/advisory/typo3-core-sa-2020-003
Are you affected?
Enter the version of the package you're using.
Affected packages
Packagist/typo3/cms-core
Introduced in:
10.0.0Fixed in: 10.4.2Fix
composer require typo3/cms-core:^10.4.2Packagist/typo3/cms-core
Introduced in:
9.0.0Fixed in: 9.5.17Fix
composer require typo3/cms-core:^9.5.17References
- https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-4j77-gg36-9864[WEB]
- https://nvd.nist.gov/vuln/detail/CVE-2020-11065[ADVISORY]
- https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/CVE-2020-11065.yaml[WEB]
- https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms/CVE-2020-11065.yaml[WEB]
- https://typo3.org/security/advisory/typo3-core-sa-2020-003[WEB]