MEDIUM5.4
GHSA-43gj-mj2w-wh46
Cross-Site Scripting in TYPO3 CMS Form Engine
Quick fix
GHSA-43gj-mj2w-wh46 — typo3/cms-core: upgrade to the fixed version with the command below.
composer require typo3/cms-core:^9.5.17Details
In TYPO3 CMS greater than or equal to 9.0.0 and less than 9.5.17 and greater than or equal to 10.0.0 and less than 10.4.2, it has been discovered that HTML `placeholder` attributes containing data of other database records are vulnerable to cross-site scripting. A valid backend user account is needed to exploit this vulnerability.
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-2020-002
Are you affected?
Enter the version of the package you're using.
Affected packages
Packagist/typo3/cms-core
Introduced in:
9.0.0Fixed in: 9.5.17Fix
composer require typo3/cms-core:^9.5.17Packagist/typo3/cms-core
Introduced in:
10.0.0Fixed in: 10.4.2Fix
composer require typo3/cms-core:^10.4.2References
- https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-43gj-mj2w-wh46[WEB]
- https://nvd.nist.gov/vuln/detail/CVE-2020-11064[ADVISORY]
- https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/CVE-2020-11064.yaml[WEB]
- https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms/CVE-2020-11064.yaml[WEB]
- https://typo3.org/security/advisory/typo3-core-sa-2020-002[WEB]