Contao is vulnerable to cross-site scripting in templates
### Impact It is possible to inject code into the template output that will be executed in the browser in the front end and back end. ### Patches Update to Contao 4.13.57, 5.3.42 or 5.6.5. ### Workarounds Do not use the affected templates or patch them manually. ### Refsources https://contao.org/en/security-advisories/cross-site-scripting-in-templates
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describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2025-65961US | medium4.8 | — | ||
Contao is an Open Source CMS. From version 4.0.0 to before 4.13.57, before 5.3.42, and before 5.6.5, it is possible to inject code into the template output that will be executed in… | ||||
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references
External citations — patches, advisories, analysis.
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