CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
82.5%
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, leading to remote code execution.
github.com/advisories/GHSA-whr7-m3f8-mpm8
github.com/getgrav/grav/commit/8c2c1cb72611a399f13423fc6d0e1d998c03e5c8
github.com/getgrav/grav/commit/9d6a2dba09fd4e56f5cdfb9a399caea355bfeb83#diff-a85d37d04dd05856c061a673dcedb849de79194bb315500bd681fb001484d644R1694
github.com/getgrav/grav/security/advisories/GHSA-whr7-m3f8-mpm8
github.com/twigphp/Twig/blob/v1.44.7/src/Environment.php#L148
huntr.dev/bounties/3ef640e6-9e25-4ecb-8ec1-64311d63fe66/
www.github.com/getgrav/grav/commit/9d6a2dba09fd4e56f5cdfb9a399caea355bfeb83