CVE-2021-32667 - CVE House

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Status published Medium CVE-2021-32667

Cross-Site Scripting in Page Preview

6.4 CVSS

Vulnerability 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 _Page TSconfig_ settings are not properly encoded, corresponding page preview module (_Web>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 issue.

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

More from TYPO3

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Command Injection in extension "TYPO3 Backup Plus" (ns_backup)

Insecure Direct Object Reference in extension "femanager" (femanager)

Insecure Direct Object Reference in extension "powermail" (powermail)

TYPO3 CMS Allows Broken Access Control in Recycler Module

TYPO3 CMS Allows Broken Access Control in Redirects Module

Affected Vendor

TYPO3

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Affected Software

TYPO3.CMS

Vulnerable Versions:

>= 9.0.0, < 9.5.29, >= 10.0.0, < 10.4.18, >= 11.0.0, < 11.3.1

Timeline

Official Publish: July 20th, 2021

Last Modified: August 3rd, 2024

Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:N

Weaknesses (CWE)

MITRE ATT&CK TTPs

T1189 Drive-by Compromise

T1059.007 JavaScript

T1539 Steal Web Session Cookie

T1213 Data from Information Repositories

T1567 Exfiltration Over Web Service

T1491.001 Defacement