CVE-2020-11067
Insecure Deserialization in Backend User Settings in TYPO3 CMS
8.8
HIGH
CVSS 3.1
EPSS 1.2%
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
How to fix CVE-2020-11067
To remediate CVE-2020-11067, upgrade the affected package to a fixed version below.
- —upgrade to 9.5.16 or later
- —upgrade to 10.4.2 or later
- —upgrade to 9.5.17 or later
Is CVE-2020-11067 being exploited?
Low — EPSS is 1.2%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- >= 9.0.0, < 9.5.16, >= 10.0.0, < 10.4.1
- >= 10.0.0, < 10.4.2
- >= 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 |