GHSA-vqqx-jw6p-q3rf
Cross-Site Scripting in Fluid view helpers
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| Packagist | typo3/cms-core | >= 9.0.0, < 9.5.23 | 9.5.23 |
| Packagist | typo3/cms-core | >= 10.0.0, < 10.4.10 | 10.4.10 |
| Packagist | typo3/cms-core | >= 8.7.0, < 8.7.38 | 8.7.38 |
| Packagist | typo3/cms | >= 10.0.0, < 10.4.10 | 10.4.10 |
| Packagist | typo3/cms | >= 9.0.0, < 9.5.23 | 9.5.23 |
| Packagist | typo3/cms | >= 8.7.0, < 8.7.38 | 8.7.38 |
Details
As written in the advisory (Markdown source, shown as plain text).
> ### 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)
References
External links from the advisory. They lead to third-party sites.
- https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-vqqx-jw6p-q3rf
- https://nvd.nist.gov/vuln/detail/CVE-2020-26227
- https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/CVE-2020-26227.yaml
- https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms/CVE-2020-26227.yaml
- https://packagist.org/packages/typo3/cms-core
- https://typo3.org/security/advisory/typo3-core-sa-2020-010