Medium severity · published Nov 25, 2025
CVE-2025-65960
Contao is vulnerable to remote code execution in template closures
6.6
CVSS
0.2%
EPSS
No
On KEV
Description
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, back end users with precise control over the contents of template closures can execute arbitrary PHP functions that do not have required parameters. This issue has been patched in versions 4.13.57, 5.3.42, and 5.6.5. A workaround for this issue involves manually patching the Contao\Template::once() method.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
High
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 9% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CO
contao · contao
>= 4.0.0, < 4.13.57; >= 5.0.0-RC1, < 5.3.42; >= 5.4.0-RC1, < 5.6.5 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-65960
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-65960
Vendor Advisory
https://contao.org/en/security-advisories/remote-code-execution-in-template-closures
Vendor Advisory
https://github.com/contao/contao/security/advisories/GHSA-98vj-mm79-v77r
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