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.
CVE-2025-65960
This medium-severity CVE scores 6.6 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2%, top 95% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- Lower severity and no public exploit yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 6.6
- EG Score
- 6.6(medium)
- EG Risk
- 30(Track)EG Risk 30/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity66% × 45%Exploitation0% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS
- 5.5%
- KEV
- Not listed
Published
November 25, 2025
Last Modified
June 17, 2026
References (2)
- security-advisories@githubhttps://contao.org/en/security-advisories/remote-code-execution-in-template-closures
- security-advisories@githubhttps://github.com/contao/contao/security/advisories/GHSA-98vj-mm79-v77r
Affected Packages
(1 across 1 ecosystem)
Packagist(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| contao/core-bundle | 5.4.0 ... 5.6.4 (48 versions) | 5.6.5 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 10× in last 7d / 45× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-23 03:01 UTCEG score recompute
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- 2026-05-29 18:52 UTCEG score recompute
- 2026-05-29 13:44 UTCEPSS rescore
Related CVEs(same CWE)
Frequently asked(5)
What is CVE-2025-65960?
When was CVE-2025-65960 disclosed?
Is CVE-2025-65960 actively exploited?
What is the CVSS score of CVE-2025-65960?
How do I remediate CVE-2025-65960?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2025-65960
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