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 database fields used as _descriptionColumn_ are vulnerable to cross-site scripting when their content gets previewed. A valid backend user account is needed to exploit this vulnerability. This is fixed in versions 10.4.14, 11.1.1 .

Remediation

References

CVE-2021-21340

Related Vulnerabilities

Moodle Permissions, Privileges, and Access Controls Vulnerability (CVE-2012-6100)

Piwigo Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Vulnerability (CVE-2009-4039)

Jenkins Incorrect Authorization Vulnerability (CVE-2018-1999047)

MySQL CVE-2021-2226 Vulnerability (CVE-2021-2226)

Jboss EAP Improper Validation of Integrity Check Value Vulnerability (CVE-2023-48795)

Severity

Medium

Classification

CVE-2021-21340 CWE-707 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Tags

Missing Update Known Vulnerabilities