Packagist/typo3/cms-core CVE-2020-11066: high 8.7, EPSS 1.51%

Class destructors causing side-effects when being unserialized in TYPO3 CMS

Action: Upgrade typo3/cms-core to 9.5.17 or later.

composer require typo3/cms-core:9.5.17

composer require typo3/cms-core:10.4.2

Affected

Fixed versions

Sources

• osv: GHSA-2rxh-h6h9-qrqc
• https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-2rxh-h6h9-qrqc
• https://nvd.nist.gov/vuln/detail/CVE-2020-11066
• https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/CVE-2020-11066.yaml
• https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms/CVE-2020-11066.yaml
• https://typo3.org/security/advisory/typo3-core-sa-2020-004

CVE-2020-11066 · published 2020-05-13T23:18:38Z · modified 2026-09-10T03:48:30.099290014Z · JSON