cnvd-2021-26150

EUVD-2026-45994

fkie_cve-2020-26227

TYPO3 is an open source PHP based web content management system. In TYPO3 before versions 9.5.23 and 10.4.10 the 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. Update to TYPO3 versions 9.5.23 or 10.4.10 that fix the problem described.

GHSA-vqqx-jw6p-q3rf — Cross-Site Scripting in Fluid view helpers

Affected: Packagist: typo3/cms-core, Packagist: typo3/cms

> ### 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)

Most recent entries from all

cnvd-2021-26150

EUVD-2026-45994

fkie_cve-2020-26227

GHSA-vqqx-jw6p-q3rf — Cross-Site Scripting in Fluid view helpers

gsd-2020-26227