Deserialization in TYPO3
CVE-2019-19849
An issue was discovered in TYPO3 before 8.7.30, 9.x before 9.5.12, and 10.x before 10.2.2. It has been discovered that the classes QueryGenerator and QueryView are vulnerable to insecure deserialization. One exploitable scenario requires having the system extension ext:lowlevel (Backend Module: DB Check) installed, with a valid backend user who has administrator privileges. The other exploitable scenario requires having the system extension ext:sys_action installed, with a valid backend user who has limited privileges.
Vulnerability class: Insecure Deserialization
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.013 (68.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 69th percentile — 68.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000
Affected products
Weakness classification (CWE)
References
- typo3.org/security/advisory/typo3-core-sa-2019-026/ (Vendor Advisory)
- review.typo3.org/q/%22Resolves:+%2389005%22+topic:security (Vendor Advisory)
Frequently asked questions
- What is CVE-2019-19849?
- CVE-2019-19849 is a high-severity vulnerability in TYPO3, classified under Deserialization of Untrusted Data. CVSS score: 8.8/10. Published 2019-12-17.
- How severe is CVE-2019-19849?
- High severity. CVSS v3 base score is 8.8 out of 10.