CVE-2025-66298CWE-1336

CVE-2025-66298

High ยท published December 2, 2025

CVSS v3.1
7.5
EPSS
0%
Percentile
30.6
In the wild
Unconfirmed
What it is

โšก A crafty POST request could spill the beans! This Server-Side Template (SST) vulnerability in Grav exposes your entire configuration โ€” including plugin secrets โ€” to anyone with the right payload. ๐Ÿ”ฅ Think of it like having a restaurant menu that lists not just the dishes but all the behind-the-scenes recipes and secret ingredients, and all you need is a special request to see it! That's how this vulnerability works, giving away sensitive information off the menu. ๐Ÿ“œ An attacker could potentially gain access to crucial configuration details, including sensitive plugin settings that could be leveraged for further exploitation. This could lead to unauthorized changes, data leaks, or even full site compromise, putting your entire web platform at risk!

Put simply

Think of it like having a restaurant menu that lists not just the dishes but all the behind-the-scenes recipes and secret ingredients, and all you need is a special request to see it! That's how this vulnerability works, giving away sensitive information off the menu. ๐Ÿ“œ This vulnerability allows attackers to exploit a flaw in Grav's Server-Side Template handling, prompting the server to reveal internal configuration details through crafted POST requests. Prior to version 1.8.0-beta.27, the lack of proper input validation makes this a serious security issue.

What to do

An attacker could potentially gain access to crucial configuration details, including sensitive plugin settings that could be leveraged for further exploitation. This could lead to unauthorized changes, data leaks, or even full site compromise, putting your entire web platform at risk! Patch your Grav installation to version 1.8.0-beta.27 immediately to close this vulnerability. Regularly review your configuration settings and ensure best practices for input validation are followed in your forms to bolster security. ๐Ÿ›ก๏ธ You can tackle this! Update your platform and keep your web space safe and sound. You've got this! ๐Ÿ’ชโœจ

The record
Technical detail
CVSS v3.1
7.5 ยท HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00378 ยท 30.6th percentile
Weakness
CWE-1336 ยท Improper Neutralization of Special Elements Used in a Template Engine
Published
2025-12-02T03:15Z
Affected products (27)
ProductVersionsFixed in
getgrav/grav< 1.8.01.8.0
getgrav/gravall versionsโ€”
getgrav/gravall versionsโ€”
getgrav/gravall versionsโ€”
getgrav/gravall versionsโ€”
getgrav/gravall versionsโ€”
getgrav/gravall versionsโ€”
getgrav/gravall versionsโ€”
getgrav/gravall versionsโ€”
getgrav/gravall versionsโ€”
getgrav/gravall versionsโ€”
getgrav/gravall versionsโ€”
getgrav/gravall versionsโ€”
getgrav/gravall versionsโ€”
getgrav/gravall versionsโ€”
getgrav/gravall versionsโ€”
getgrav/gravall versionsโ€”
getgrav/gravall versionsโ€”
getgrav/gravall versionsโ€”
getgrav/gravall versionsโ€”
getgrav/gravall versionsโ€”
getgrav/gravall versionsโ€”
getgrav/gravall versionsโ€”
getgrav/gravall versionsโ€”
getgrav/gravall versionsโ€”
getgrav/gravall versionsโ€”
getgrav/gravall versionsโ€”
References (2)
EPSS history
Timeline
  • 01 DEC 21:10Z
    Grav is vulnerable to Server-Side Template Injection (SSTI) via Forms
    cvelistv5