CVE-2021-32669

Cross-Site Scripting in Backend Grid View

MEDIUM
5.4
CVSS Score
Published: July 20, 2021 at 03:35 PM UTC
Updated: June 17, 2026 at 03:53 AM UTC
1 product affected across 1 vendorTYPO3

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Severity
MEDIUM5.4
Exploit prediction
EPSS 0.6%

Description

TYPO3 is an open source PHP based web content management system. Versions 9.0.0 through 9.5.28, 10.0.0 through 10.4.17, and 11.0.0 through 11.3.0 have a cross-site scripting vulnerability. When settings for _backend layouts_ are not properly encoded, the corresponding grid view is vulnerable to persistent cross-site scripting. A valid backend user account is needed to exploit this vulnerability. TYPO3 versions 9.5.29, 10.4.18, 11.3.1 contain a patch for this vulnerability.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

95%
v < 10.4.18v < 11.3.1v < 9.5.2910.0.0 ≤ v ≤ 10.4.1711.0.0 ≤ v ≤ 11.3.08.0.0 ≤ v ≤ 8.7.409.0.0 ≤ v ≤ 9.5.28
Affected range stops below 10.4.18, so it looks safe — our inference, not a vendor statement
Affected range stops below 11.3.1, so it looks safe — our inference, not a vendor statement
Affected range stops below 9.5.29, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-79

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