CVE Vulnerability

CVE-2020-26229

TYPO3 is an open source PHP based web content management system. In TYPO3 from version 10.4.0, and before version 10.4.10, RSS widgets are susceptible to XML external entity processing. This vulnerability is reasonable, but is theoretical - it was not possible to actually reproduce the vulnerability with current PHP versions of supported and maintained system distributions. At least with libxml2 version 2.9, the processing of XML external entities is disabled per default - and cannot be exploited. Besides that, a valid backend user account is needed. Update to TYPO3 version 10.4.10 to fix the problem described.

3.6 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 4.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact PARTIAL

Scope

3.7 /10

CVSS v3.0 : LOW

V3 Legend

Vector :

Exploitability : 1.2 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

References
Link Resource
https://typo3.org/security/advisory/typo3-core-sa-2020-012 Vendor Advisory
https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-q9cp-mc96-m4w2 Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:typo3:typo3:*:*:*:*:*:*:*:*
Information

Published : 2020-11-23 10:15

Updated : 2020-12-01 08:53

NVD link : CVE-2020-26229

Mitre link : CVE-2020-26229

Products Affected
No products.
CWE
CWE-611

Improper Restriction of XML External Entity Reference