CVE-2021-21370

Severity CVSS v4.0:

Pending analysis

Type:

CWE-79 Cross-Site Scripting (XSS)

Publication date:

23/03/2021

Last modified:

26/03/2021

Description

TYPO3 is an open source PHP based web content management system. In TYPO3 before versions 7.6.51, 8.7.40, 9.5.25, 10.4.14, 11.1.1 it has been discovered that content elements of type _menu_ are vulnerable to cross-site scripting when their referenced items get previewed in the page module. A valid backend user account is needed to exploit this vulnerability. This is fixed in versions 7.6.51, 8.7.40, 9.5.25, 10.4.14, 11.1.1.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N CVSS v3.1 Severity and Metrics:

Base Score: 5.40 MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): Required
Scope (S): Changed
Confidentiality (C): Low
Integrity (I): Low
Availability (A): None

Base Score 3.x

5.40

Severity 3.x

MEDIUM

Vector 2.0

AV:N/AC:M/Au:S/C:N/I:P/A:N CVSS v2.0 Severity and Metrics:

Base Score: 3.50 LOW
Vector: AV:N/AC:M/Au:S/C:N/I:P/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Medium
Authentication (Au): Single
Confidentiality (C): None
Integrity (I): Physical
Availability (A): None

Base Score 2.0

3.50

Severity 2.0

LOW

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:typo3:typo3::::::::	7.0.0 (including)	7.6.51 (excluding)
cpe:2.3:a:typo3:typo3::::::::	8.0.0 (including)	8.7.40 (excluding)
cpe:2.3:a:typo3:typo3::::::::	9.0.0 (including)	9.5.25 (excluding)
cpe:2.3:a:typo3:typo3::::::::	10.0.0 (including)	10.4.14 (excluding)
cpe:2.3:a:typo3:typo3::::::::	11.0.0 (including)	11.1.1 (excluding)

To consult the complete list of CPE names with products and versions, see this page

CVE-2021-21370

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools