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CVE-2021-32768

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CVE-2021-32768

Published: Aug 10, 2021

Modified: Aug 3, 2024

PUBLISHED

CVSS v3.1

6.1

MEDIUM

Description

TYPO3 is an open source PHP based web content management system released under the GNU GPL. In affected versions failing to properly parse, sanitize and encode malicious rich-text content, the content rendering process in the website frontend is vulnerable to cross-site scripting. Corresponding rendering instructions via TypoScript functionality HTMLparser does not consider all potentially malicious HTML tag & attribute combinations per default. In default scenarios, a valid backend user account is needed to exploit this vulnerability. In case custom plugins used in the website frontend accept and reflect rich-text content submitted by users, no authentication is required. Update to TYPO3 versions 7.6.53 ELTS, 8.7.42 ELTS, 9.5.29, 10.4.19, 11.3.2 that fix the problem described.

VendorProductVersions

TYPO3

TYPO3.CMS

affected
>= 7.0.0, < 7.6.53
affected
>= 8.0.0, < 8.7.42
affected
>= 9.0.0, < 9.5.29
affected
>= 10.0.0, < 10.4.19
affected
>= 11.0.0, < 11.3.2

Weaknesses (CWE)

CWE-79

CVSS v3.1 Details

CVSS v3.1 Vector

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

References

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