CVE-2020-11067
HIGH8.8EPSS 1.2%Insecure Deserialization in Backend User Settings in TYPO3 CMS
Published: 5/13/2020Modified: 3/13/2026
Description
It has been discovered that backend user settings (in $BE_USER->uc) are vulnerable to insecure deserialization. In combination with vulnerabilities of 3rd party components this can lead to remote code execution. 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-2020-005
Affected packages (3)
- Bitnami/typo3>= 9.0.0, < 9.5.16, >= 10.0.0, < 10.4.1
- Packagist/typo3/cms>= 10.0.0, < 10.4.2
- Packagist/typo3/cms-core>= 9.0.0, < 9.5.17
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
References (5)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2020-11067
- WEBhttps://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/CVE-2020-11067.yaml
- WEBhttps://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms/CVE-2020-11067.yaml
- WEBhttps://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-2wj9-434x-9hvp
- WEBhttps://typo3.org/security/advisory/typo3-core-sa-2020-005