Cross-site Scripting (XSS) - Stored in getgrav/grav

Cross-site Scripting (XSS) - Stored in GitHub repository getgrav/grav prior to 1.7.31.

Cross-site Scripting (XSS) - Stored in getgrav/grav

Cross-site Scripting (XSS) - Stored in GitHub repository getgrav/grav prior to 1.7.31.

Cross-site Scripting (XSS) - Stored in getgrav/grav

Cross-site Scripting (XSS) - Stored in Packagist getgrav/grav prior to 1.7.28.

Path Traversal in getgrav/grav

grav is vulnerable to Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Cross-site Scripting (XSS) - Stored in getgrav/grav-plugin-admin

grav-plugin-admin is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Cross-site Scripting (XSS) - Stored in getgrav/grav

grav is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Reliance on Cookies without Validation and Integrity Checking in getgrav/grav

grav is vulnerable to Reliance on Cookies without Validation and Integrity Checking

Improper Restriction of Rendered UI Layers or Frames in getgrav/grav-plugin-admin

grav-plugin-admin is vulnerable to Improper Restriction of Rendered UI Layers or Frames

Twig allowing dangerous PHP functions by default

Grav is a file based Web-platform. Twig processing of static pages can be enabled in the front matter by any administrative user allowed to create or edit pages. As the Twig processor runs unsandboxed, this behavior can be used to gain arbitrary code execution and elevate privileges on the instance. The issue was addressed in version 1.7.11.

Plugins can be installed with minimal admin privileges

The Grav admin plugin prior to version 1.10.11 does not correctly verify caller's privileges. As a consequence, users with the permission `admin.login` can install third-party plugins and their dependencies. By installing the right plugin, an attacker can obtain an arbitrary code execution primitive and elevate their privileges on the instance. The vulnerability has been addressed in version 1.10.11. As a mitigation blocking access to the `/admin` path from untrusted sources will reduce the probability of exploitation.

Unauthenticated Arbitrary YAML Write/Update leads to Code Execution

Grav Admin Plugin is an HTML user interface that provides a way to configure Grav and create and modify pages. In versions 1.10.7 and earlier, an unauthenticated user can execute some methods of administrator controller without needing any credentials. Particular method execution will result in arbitrary YAML file creation or content change of existing YAML files on the system. Successfully exploitation of that vulnerability results in configuration changes, such as general site information change, custom scheduler job definition, etc. Due to the nature of the vulnerability, an adversary can change some part of the webpage, or hijack an administrator account, or execute operating system command under the context of the web-server user. This vulnerability is fixed in version 1.10.8. Blocking access to the `/admin` path from untrusted sources can be applied as a workaround.

The Backup functionality in Grav CMS through 1.7.0-rc.17 allows an authenticated attacker to read arbitrary local files on the underlying server by exploiting a path-traversal technique. (This vulnerability can also be exploited by an unauthenticated attacker due to a lack of CSRF protection.)

The BackupDelete functionality in Grav CMS through 1.7.0-rc.17 allows an authenticated attacker to delete arbitrary files on the underlying server by exploiting a path-traversal technique. (This vulnerability can also be exploited by an unauthenticated attacker due to a lack of CSRF protection.)

The Scheduler in Grav CMS through 1.7.0-rc.17 allows an attacker to execute a system command by tricking an admin into visiting a malicious website (CSRF).

Common/Grav.php in Grav before 1.7 has an Open Redirect. This is partially fixed in 1.6.23 and still present in 1.6.x.

Grav through 1.6.15 allows (Stored) Cross-Site Scripting due to JavaScript execution in SVG images.

Cross-site scripting (XSS) vulnerability in system/src/Grav/Common/Twig/Twig.php in Grav CMS before 1.3.0 allows remote attackers to inject arbitrary web script or HTML via the PATH_INFO to admin/tools.