CVE-2026-78851

MEDIUM

Published Oct 15, 2026 Modified Oct 15, 2026 CWE-22 CWE-200

Description

Directory Traversal vulnerability in Grav CMS 2.0.3 through 2.0.6 allows a remote attacker to obtain sensitive information via the GravExtension.php and the mediaDirFunc method.

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CVSS v3.1 Score

6.5

MEDIUM

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

Weakness Type (CWE)

CWE-22 Path Traversal

CWE-200 CWE-200

References

Other References

https://github.com/SLO-CYBER-SEC/CVE-2026-78851 https://github.com/getgrav/grav https://github.com/getgrav/grav/blob/2.0.6/system/config/security.yaml#L325 https://github.com/getgrav/grav/blob/2.0.6/system/src/Grav/Common/Twig/Extension/GravExtension.php#L1629 https://github.com/SLO-CYBER-SEC/CVE-2026-78851

Frequently Asked Questions

What is CVE-2026-78851? +

Directory Traversal vulnerability in Grav CMS 2.0.3 through 2.0.6 allows a remote attacker to obtain sensitive information via the GravExtension.php and the mediaDirFunc method. It has a CVSS v3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2026-78851? +

CVE-2026-78851 has a CVSS v3.1 score of 6.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

How do I check if I'm vulnerable to CVE-2026-78851? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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