getgrav/grav vulnerabilities · Page 5

Grav Server-side Template Injection (SSTI) via Twig Default Filters

Grav is a flat-file content management system. Prior to version 1.7.42, the patch for CVE-2022-2073, a server-side template injection vulnerability in Grav leveraging the default `filter()` function, did not block other built-in functions exposed by Twig's Core Extension that could be used to invoke arbitrary unsafe functions, thereby allowing for remote code execution. A patch in version 1.74.2 overrides the built-in Twig `map()` and `reduce()` filter functions in `system/src/Grav/Common/Twig/Extension/GravExtension.php` to validate the argument passed to the filter in `$arrow`.

• Update to 1.7.42

Grav vulnerable to Server-side Template Injection (SSTI) via Denylist Bypass

Grav is a flat-file content management system. Prior to version 1.7.42, the denylist introduced in commit 9d6a2d to prevent dangerous functions from being executed via injection of malicious templates was insufficient and could be easily subverted in multiple ways -- (1) using unsafe functions that are not banned, (2) using capitalised callable names, and (3) using fully-qualified names for referencing callables. 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. A patch in version 1.7.42 improves the denylist

• Update to 1.7.42

Grav Server-side Template Injection via Insufficient Validation in filterFilter

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

• Update to 1.7.42

Grav Server Side Template Injection vulnerability

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.

• Update to 1.7.42

Code Injection in getgrav/grav

Code Injection in GitHub repository getgrav/grav prior to 1.7.34.

• Update to 1.7.34

stored xss in getgrav/grav

stored xss in GitHub repository getgrav/grav prior to 1.7.33.

• Update to 1.7.33

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

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

• Update 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.

• Update 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.

• Update 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

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

• Update to 1.7.24

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

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

• Update to 1.7.21

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.

• Update to 1.7.11

CVE-2020-29553

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).

• Update to 1.6.30

CVE-2020-29555

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.)

• Update to 1.6.30

CVE-2020-29556

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.)

• Update to 1.6.30

CVE-2020-11529

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.

• Update to 1.6.23

CVE-2019-16126

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

• Update to 1.7.0-beta.8

CVE-2018-5233

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.

• Update to 1.3.0