CVE-2021-21358

Sep 3, 2024

Published Date: 2021-03-23T02:15Z

Last Modified: 2021-03-26T18:24Z

CVSS Score: 5.4 (MEDIUM)

EPSS Score: 0.06%

Risk Score: 3.78 (MEDIUM)

Risk Score based on CVSS score and EPSS. This score is for reference purposes and is not internationally recognized.

CVSS: 5.4 | EPSS: 0.06%

NVD Links:

https://nvd.nist.gov/vuln/detail/CVE-2021-21358

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.

Mitre ATT&CK Technical v15.1

T1153 – Source
T1064 – Scripting
T1053.002 – At

Technical Analysis & Mitigation Measures

Reference Links

https://typo3.org/security/advisory/typo3-core-sa-2021-004
https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-x79j-wgqv-g8h2
https://packagist.org/packages/typo3/cms-form

Vendor - Produce - Version

typo3 - typo3, typo3 - typo3

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