Getgrav: Security Vulnerabilities
Grav is a flat-file content management system. Versions prior to 1.7.42 are vulnerable to server side template injection. Remote code execution is possible by embedding malicious PHP code on the administrator screen by a user with page editing privileges. Version 1.7.42 contains a fix for this issue.
CVSS Score
9.9
EPSS Score
0.025
Published
2023-06-14
Grav is a flat-file content management system. Prior to version 1.7.42, there is a logic flaw in the `GravExtension.filterFilter()` function whereby validation against a denylist of unsafe functions is only performed when the argument passed to filter is a string. However, passing an array as a callable argument allows the validation check to be skipped. Consequently, a low privileged attacker with login access to Grav Admin panel and page creation/update permissions is able to inject malicious templates to obtain remote code execution. The vulnerability can be found in the `GravExtension.filterFilter()` function declared in `/system/src/Grav/Common/Twig/Extension/GravExtension.php`. Version 1.7.42 contains a patch for this issue. End users should also ensure that `twig.undefined_functions` and `twig.undefined_filters` properties in `/path/to/webroot/system/config/system.yaml` configuration file are set to `false` to disallow Twig from treating undefined filters/functions as PHP functions and executing them.
CVSS Score
8.8
EPSS Score
0.004
Published
2023-06-14
Code Injection in GitHub repository getgrav/grav prior to 1.7.34.
CVSS Score
9.1
EPSS Score
0.002
Published
2022-06-29
stored xss in GitHub repository getgrav/grav prior to 1.7.33.
CVSS Score
8.2
EPSS Score
0.004
Published
2022-04-26
Cross-site Scripting (XSS) - Stored in GitHub repository getgrav/grav prior to 1.7.31.
CVSS Score
7.1
EPSS Score
0.004
Published
2022-03-15
Cross-site Scripting (XSS) - Stored in GitHub repository getgrav/grav prior to 1.7.31.
CVSS Score
4.6
EPSS Score
0.003
Published
2022-02-28
Cross-site Scripting (XSS) - Stored in Packagist getgrav/grav prior to 1.7.28.
CVSS Score
5.7
EPSS Score
0.003
Published
2022-01-25
grav-plugin-admin is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVSS Score
4.6
EPSS Score
0.002
Published
2021-11-19
grav is vulnerable to Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CVSS Score
8.8
EPSS Score
0.01
Published
2021-11-05
grav is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVSS Score
6.3
EPSS Score
0.002
Published
2021-10-27