CVE-2025-66298 – Grav is vulnerable to Server-Side Template Injection (SSTI) via Forms

The following table lists the changes that have been made to the
CVE-2025-66298 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution
of a vulnerability, and for identifying the most recent changes that may
impact the vulnerability’s severity, exploitability, or other characteristics.

  • New CVE Received
    by [email protected]

    Dec. 01, 2025

    Action Type Old Value New Value
    Added Description Grav is a file-based Web platform. Prior to 1.8.0-beta.27, having a simple form on site can reveal the whole Grav configuration details (including plugin configuration details) by using the correct POST payload to exploit a Server-Side Template (SST) vulnerability. Sensitive information may be contained in the configuration details. This vulnerability is fixed in 1.8.0-beta.27.
    Added CVSS V4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
    Added CWE CWE-1336
    Added Reference https://github.com/getgrav/grav/commit/e37259527d9c1deb6200f8967197a9fa587c6458
    Added Reference https://github.com/getgrav/grav/security/advisories/GHSA-8535-hvm8-2hmv
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