CVE-2020-26227 – typo3/cms-core

Package

Manager: composer
Name: typo3/cms-core
Vulnerable Version: >=9.0.0 <9.5.23 || >=10.0.0 <10.4.10 || >=8.7.0 <8.7.38

Severity

Level: Medium

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

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

EPSS: 0.00359 pctl0.57381

Details

Cross-Site Scripting in Fluid view helpers > ### Meta > * CVSS: `CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:F/RL:O/RC:C` (5.7) > * CWE-79 ### Problem It has been discovered that system extension Fluid (`typo3/cms-fluid`) of the TYPO3 core is vulnerable to cross-site scripting passing user-controlled data as argument to Fluid view helpers. ``` <f:form ... fieldNamePrefix="{payload}" /> <f:be.labels.csh ... label="{payload}" /> <f:be.menus.actionMenu ... label="{payload}" /> ``` ### Solution Update to TYPO3 versions 9.5.23 or 10.4.10 that fix the problem described. ### Credits Thanks to TYPO3 security team member Oliver Hader who reported this issue and to TYPO3 security team members Helmut Hummel & Oliver Hader who fixed the issue. ### References * [TYPO3-CORE-SA-2020-010](https://typo3.org/security/advisory/typo3-core-sa-2020-010)

Metadata

Created: 2020-12-21T16:28:11Z
Modified: 2021-01-07T22:34:28Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2020/12/GHSA-vqqx-jw6p-q3rf/GHSA-vqqx-jw6p-q3rf.json
CWE IDs: ["CWE-79"]
Alternative ID: GHSA-vqqx-jw6p-q3rf
Finding: F008
Auto approve: 1