Insecure Deserialization Vulnerability in TYPO3 by TYPO3 CMS
CVE-2019-19849

8.8HIGH

Key Information:

Vendor

Typo3

Status
Typo3
Vendor
CVE Published:
17 December 2019

What is CVE-2019-19849?

An insecure deserialization vulnerability has been identified in TYPO3 CMS affecting versions prior to 8.7.30, 9.x before 9.5.12, and 10.x before 10.2.2. This vulnerability affects the QueryGenerator and QueryView classes, allowing potential attackers to exploit the system under certain conditions. Specifically, if the 'ext:lowlevel' system extension (Backend Module: DB Check) is installed and a backend user with administrator privileges is present, the vulnerability can be exploited. Moreover, if the 'ext:sys_action' system extension is utilized with a backend user possessing limited privileges, the risk remains significant. Proper mitigation strategies are essential to safeguard your TYPO3 installation against potential exploitation.

References

https://typo3.org/security/advisory/typo3-core-sa-2019-026/
x_refsource_MISC
https://review.typo3.org/q/%2522Resolves:+%252389005%2522...
x_refsource_MISC

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.