GHSA-98vj-mm79-v77r · Severity: medium · Ecosystem: composer — Contao is vulnerable to remote code execution in template closures
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.
Conclusion & alert: CVE-2025-65960 is rated Low Risk (28.2/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.15%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.02% | 0.15% | +0.13% |
| 2 | 2025-11-26 | — | 0.02% | — |
Full EPSS history (2 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 6.6 | 3.1 | MEDIUM |
|
0.7 | 5.9 | [email protected] |
GHSA-98vj-mm79-v77r · Severity: medium · Ecosystem: composer — Contao is vulnerable to remote code execution in template closures
| URL | Tags |
|---|---|
| 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 | Vendor Advisory |