{"id":"GHSA-96jg-pmc4-cx39","aliases":[],"status":"published","title":"TYPO3 CMS Insecure Deserialization","description":"It has been discovered that the Form Framework (system extension `form`) is vulnerable to Insecure Deserialization when being used with the additional PHP PECL package `yaml`, which is capable of unserializing YAML contents to PHP objects. A valid backend user account as well as having PHP setting `yaml.decode_php` enabled is needed to exploit this vulnerability (which is the default value according to PHP documentation).","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","from":"ghsa"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-502"],"published":"2024-05-30T14:52:14Z","modified":"2024-12-05T05:42:20Z","fixes":[{"ecosystem":"Packagist","package":"typo3/cms-core","fixed_in":["8.7.17","9.3.1"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Packagist","package":"typo3/cms-core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"8.5.0"},{"fixed":"8.7.17"}]}]},{"source":"ghsa","ecosystem":"Packagist","package":"typo3/cms-core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"9.0.0"},{"fixed":"9.3.1"}]}]},{"source":"osv","ecosystem":"Packagist","package":"typo3/cms-core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"8.5.0"},{"fixed":"8.7.17"}]}],"versions":["v8.7.10","v8.7.11","v8.7.12","v8.7.13","v8.7.14","v8.7.15","v8.7.16","v8.7.7","v8.7.8","v8.7.9"]},{"source":"osv","ecosystem":"Packagist","package":"typo3/cms-core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"9.0.0"},{"fixed":"9.3.1"}]}],"versions":["v9.0.0","v9.1.0","v9.2.0","v9.2.1","v9.3.0"]}],"references":[{"url":"https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/2018-07-12-4.yaml","tags":["web"]},{"url":"https://typo3.org/security/advisory/typo3-core-sa-2018-004","tags":["web"]},{"url":"https://github.com/advisories/GHSA-96jg-pmc4-cx39"},{"url":"https://github.com/TYPO3-CMS/core","tags":["package"]}],"sources":{"ghsa":[{"id":"GHSA-96jg-pmc4-cx39","title":"TYPO3 CMS Insecure Deserialization","description":"It has been discovered that the Form Framework (system extension `form`) is vulnerable to Insecure Deserialization when being used with the additional PHP PECL package `yaml`, which is capable of unserializing YAML contents to PHP objects. A valid backend user account as well as having PHP setting `yaml.decode_php` enabled is needed to exploit this vulnerability (which is the default value according to PHP documentation).","status":"published","published":"2024-05-30T14:52:14Z","modified":"2024-05-30T14:52:14Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T14:37:52.2286Z"}],"osv":[{"id":"GHSA-96jg-pmc4-cx39","title":"TYPO3 CMS Insecure Deserialization","description":"It has been discovered that the Form Framework (system extension `form`) is vulnerable to Insecure Deserialization when being used with the additional PHP PECL package `yaml`, which is capable of unserializing YAML contents to PHP objects. A valid backend user account as well as having PHP setting `yaml.decode_php` enabled is needed to exploit this vulnerability (which is the default value according to PHP documentation).","status":"published","published":"2024-05-30T14:52:14Z","modified":"2024-12-05T05:42:20.937886Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T15:46:43.123867Z"}]}}