CVE-2021-21340 – typo3/cms-core

Package

Manager: composer
Name: typo3/cms-core
Vulnerable Version: >=10.0.0 <10.4.14 || >=11.0.0 <11.1.1

Severity

Level: Medium

CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N

EPSS: 0.00379 pctl0.58656

Details

Cross-Site Scripting in Content Preview ### Problem It has been discovered that database fields used as _descriptionColumn_ are vulnerable to cross-site scripting when their content gets previewed in the page module. A valid backend user account is needed to exploit this vulnerability. ### Solution Update to TYPO3 versions 10.4.14, 11.1.1 that fix the problem described. ### Credits Thanks to Richie Lee who reported this issue and to TYPO3 framework merger Andreas Fernandez who fixed the issue. ### References * [TYPO3-CORE-SA-2021-007](https://typo3.org/security/advisory/typo3-core-sa-2021-007)

Metadata

Created: 2021-03-23T01:53:47Z
Modified: 2024-02-02T16:44:46Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/03/GHSA-fjh3-g8gq-9q92/GHSA-fjh3-g8gq-9q92.json
CWE IDs: ["CWE-79"]
Alternative ID: GHSA-fjh3-g8gq-9q92
Finding: F425
Auto approve: 1