Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in typo3/cms-form
CVE-2021-21358

5.4MEDIUM

Key Information:

Vendor

Typo3

Status
Typo3.cms
Vendor
CVE Published:
23 March 2021

What is CVE-2021-21358?

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.

Affected Version(s)

TYPO3.CMS >= 10.2.0, <= 10.4.13 <= 10.2.0, 10.4.13

TYPO3.CMS >= 11.0.0, <= 11.1.0 <= 11.0.0, 11.1.0

References

https://github.com/TYPO3/TYPO3.CMS/security/advisories/GH...
x_refsource_CONFIRM
https://packagist.org/packages/typo3/cms-form
x_refsource_MISC
https://typo3.org/security/advisory/typo3-core-sa-2021-004
x_refsource_MISC

CVSS V3.1

Score:
5.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.