CVE-2026-61873
HIGH SEVERITYCVSS Score & Metrics
Base Score
8.1 / 10
Vector String
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Vulnerability Description
Grav before 9.1.8 contains an arbitrary file write vulnerability in the Form plugin's process.save.filename parameter, which is validated against path traversal before Twig processing but never re-validated after rendering. Attackers can submit form data containing path traversal sequences that are processed through Twig templates, allowing them to write arbitrary files including PHP webshells to the web root or other sensitive directories.
Vulnerability Details
Published Date
Last Modified
CWE ID
CWE-73
Source
NVD
Vendor
getgrav
Product
grav
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