Fluid Components TYPO3 extension vulnerable to Cross-Site Scripting
All versions of Fluid Components before 3.5.0 were susceptible to Cross-Site Scripting. Version 3.5.0 of the extension fixes this issue. Due to the nature of the problem, some changes in your project's Fluid templates might be necessary to prevent unwanted double-escaping of HTML markup.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Composer package | sitegeist/fluid-components | < 3.5.0 | 3.5.0 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2023-28604
- https://github.com/FriendsOfPHP/security-advisories/blob/master/sitegeist/fluid-components/CVE-2023-28604.yaml
- https://github.com/sitegeist/fluid-components
- https://github.com/sitegeist/fluid-components/blob/master/Documentation/XssIssue.md
- https://typo3.org/security/advisory/typo3-ext-sa-2023-003
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N- Weakness (CWE)
CWE-79- Platform
- Composer
- Package
sitegeist/fluid-components- Disclosed
- 27.03.2023
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-8648-h559-8h42 - CC BY 4.0
Vulnerability history: sitegeist/fluid-components
All published vulnerabilities of this package (Composer package), newest first. Shows whether this is a one-off slip or a package that needs watching.
This is the only known vulnerability of this package.
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