CVE-2026-85604: Improper Control of Generation of Code

Grav before 2.0.18 affected versions = 2.0.17 contains a remote code execution vulnerability in the Twig sort filter. The sortFunc wrapper in GravExtension.php hardcodes Twig's isSandboxed argument to false, so unlike |map/|filter/|reduce, |sort accepts a plain function name inside the sandbox; t...

Server-side Template Injection(SSTI)

getgrav/grav is vulnerable to Server-side Template InjectionSSTI. The vulnerability exists in filterFilter function of GravExtension.php, because an array might omit the validation check when the parameter is a string. This enables an authenticated attacker to insert malicious templates and perfo...

Server-Side Template Injection (SSTI)

getgrav/grav is vulnerable to Server-Side Template Injection SSTI. The vulnerability exists because the Filter function of GravExtension.php does not properly block the other built-in functions exposed by Twig's Core Extension, which allows an attacker to invoke arbitrary unsafe functions, leadin...