Contao is vulnerable to remote code execution in template closures
Priority LOW 30CWE-351Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0019 8th percentileScored 2026-11-07
Fix Fixed contao (contao): 4.13.57, 5.3.42, 5.6.5contao/core-bundle (Packagist): 4.13.57, 5.3.42, 5.6.5
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| contao | contao | 4.0.0 to before 4.13.57; 5.0.0-RC1 to before 5.3.42; 5.4.0-RC1 to before 5.6.5 | 4.13.57, 5.3.42, 5.6.5 | Patch available | CNA |
| — | contao/core-bundle (Packagist) | 4.0.0 to before 4.13.57 | 4.13.57 | Patch available | GHSA-98vj-mm79-v77r |
| — | contao/core-bundle (Packagist) | 5.0.0-RC1 to before 5.3.42 | 5.3.42 | Patch available | GHSA-98vj-mm79-v77r |
| — | contao/core-bundle (Packagist) | 5.4.0-RC1 to before 5.6.5 | 5.6.5 | Patch available | GHSA-98vj-mm79-v77r |
- contao Vendorcontao Affected 4.0.0 to before 4.13.57; 5.0.0-RC1 to before 5.3.42; 5.4.0-RC1 to before 5.6.5 Fixed in 4.13.57, 5.3.42, 5.6.5 Patch available CNA
- contao/core-bundle (Packagist) Vendor— Affected 4.0.0 to before 4.13.57 Fixed in 4.13.57 Patch available GHSA-98vj-mm79-v77r
- contao/core-bundle (Packagist) Vendor— Affected 5.0.0-RC1 to before 5.3.42 Fixed in 5.3.42 Patch available GHSA-98vj-mm79-v77r
- contao/core-bundle (Packagist) Vendor— Affected 5.4.0-RC1 to before 5.6.5 Fixed in 5.6.5 Patch available GHSA-98vj-mm79-v77r
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:contao:contao:*:*:*:*:*:*:*:* | 4.0.0 to before 4.13.57; 5.0.0 to before 5.3.42; 5.4.0 to before 5.6.5 | Vulnerable | contao |
- cpe:2.3:a:contao:contao:*:*:*:*:*:*:*:* Versions 4.0.0 to before 4.13.57; 5.0.0 to before 5.3.42; 5.4.0 to before 5.6.5 Vulnerable ·contao
Remediation
- Fix · CNA contao (contao) Fixed in 4.13.57, 5.3.42, 5.6.5
- Fix · GHSA-98vj-mm79-v77r contao/core-bundle (Packagist) Fixed in 4.13.57 Advisory →
- Fix · GHSA-98vj-mm79-v77r contao/core-bundle (Packagist) Fixed in 5.3.42 Advisory →
- Fix · GHSA-98vj-mm79-v77r contao/core-bundle (Packagist) Fixed in 5.6.5 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2025-65960
- 2026-10-03 Alias added: GHSA-98vj-mm79-v77r
References
Advisory 3
More Contao vulnerabilities
- TI-2022-09661 Contao Managed Edition v1.5.0 was discovered to contain a remote command execution (RCE)… CVSS 3.1CRITICAL 9.8
- TI-2024-30849 Unrestricted file upload in Contao CVSS 3.1MEDIUM 6.4
- TI-2023-18600 Contao cross site scripting vulnerability via input unit widget CVSS 3.1MEDIUM 6.5
- TI-2022-08709 Cross site scripting via canonical tag CVSS 3.1HIGH 7.2
- TI-2019-08602 Contao 4.x allows SQL Injection. CVSS 3.0CRITICAL 9.8
- TI-2024-30447 Remote command execution through file upload in contao/core-bundle CVSS 3.1HIGH 8.8
Sources
- CVE-2025-65960 · CVE Program
- CVE-2025-65960 · NVD
- FIRST EPSS
- GHSA-98vj-mm79-v77r · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences