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Status published
Medium
CVE-2021-21358
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in typo3/cms-form
Vulnerability Description
TYPO3 is an open source PHP based web content management system. In TYPO3 before versions 10.4.14, 11.1.1 it has been discovered that the Form Designer backend module of the Form Framework is vulnerable to cross-site scripting. A valid backend user account with access to the form module is needed to exploit this vulnerability. This is fixed in versions 10.4.14, 11.1.1.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
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Affected Vendor
TYPO3
View all reports →Affected Software
TYPO3.CMS
Vulnerable Versions:
>= 10.2.0, <= 10.4.13, >= 11.0.0, <= 11.1.0
Timeline
Official Publish:
March 23rd, 2021
Last Modified:
August 3rd, 2024
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N