GHSA-R7FX-8G49-7HHR Grav CMS vulnerable to stored XSS via Markdown media attribute() action

Summary An authenticated user with page editing permissions can inject an executable JavaScript event-handler attribute into rendered image HTML through Grav's Markdown media action syntax. The issue is caused by Markdown image query parameters being converted into callable media actions. The...

Grav CMS vulnerable to stored XSS via Markdown media attribute() action

Summary An authenticated user with page editing permissions can inject an executable JavaScript event-handler attribute into rendered image HTML through Grav's Markdown media action syntax. The issue is caused by Markdown image query parameters being converted into callable media actions. The...

Grav Vulnerable to Remote Code Execution (RCE) via Malicious Plugin ZIP Upload in Direct Install Feature

Summary An authenticated user with administrative privileges can achieve Remote Code Execution RCE by uploading a specially crafted ZIP file through the "Direct Install" tool. While the system attempts to block direct .php file uploads, it fails to inspect the contents of uploaded ZIP archives...

GHSA-W48R-JPPP-RCFW Grav Vulnerable to Remote Code Execution (RCE) via Malicious Plugin ZIP Upload in Direct Install Feature

Summary An authenticated user with administrative privileges can achieve Remote Code Execution RCE by uploading a specially crafted ZIP file through the "Direct Install" tool. While the system attempts to block direct .php file uploads, it fails to inspect the contents of uploaded ZIP archives...

Grav API Privilege Escalation to Super Admin

Summary An insecure direct object reference and logic flaw in the Grav API plugin UsersController::update allows any authenticated user with basic API access api.access to modify their own permission configuration. An attacker can exploit this to escalate their privileges to Super Administrator...

GHSA-R945-H4VM-H736 Grav API Privilege Escalation to Super Admin

Summary An insecure direct object reference and logic flaw in the Grav API plugin UsersController::update allows any authenticated user with basic API access api.access to modify their own permission configuration. An attacker can exploit this to escalate their privileges to Super Administrator...

CVE-2026-44737

creationtimestamp| type| source ---|---|--- 2026-05-05 10:55:40+00:00| published-proof-of-concept| https://github.com/getgrav/grav/security/advisories/GHSA-fmg2-f5r9-24qc...

PT-2026-37276

Name of the Vulnerable Software and Affected Versions Grav versions prior to 2.0.0-beta.2 Description A low-privileged user, such as a Content Editor with pages.update permissions, can bypass Twig sandbox restrictions by utilizing the grav'accounts' service. This allows an attacker to...

PT-2026-37282

Name of the Vulnerable Software and Affected Versions Grav API Plugin versions prior to 1.0.0-beta.15 Description An insecure direct object reference and logic flaw in the update function of the UsersController allows any authenticated user with basic api.access permissions to modify their own...

PT-2026-37274

Name of the Vulnerable Software and Affected Versions Grav versions prior to 2.0.0-beta.2 Description A path traversal issue exists within the FormFlash core component. An unauthenticated attacker can manipulate the session id passed via the form-flash-id parameter in POST requests to traverse th...

PT-2026-37281

Name of the Vulnerable Software and Affected Versions Grav CMS Form plugin versions prior to 9.1.0 Description A Stored Cross-Site Scripting XSS issue exists in the select field template of the Grav CMS Form plugin. Taxonomy tag and category values are rendered using the Twig |raw filter in the...

PT-2026-37273

Name of the Vulnerable Software and Affected Versions Grav versions prior to 2.0.0-beta.2 Description An authenticated user with administrative privileges can achieve Remote Code Execution RCE by uploading a specially crafted ZIP file through the "Direct Install" tool. The system fails to inspect...

PT-2026-37278

Name of the Vulnerable Software and Affected Versions Grav versions prior to 2.0.0-beta.2 Description A stored Cross-Site Scripting XSS issue allows publisher-level accounts to execute arbitrary JavaScript. The problem is caused by a blacklist bypass in the detectXss function, which fails to...

PT-2026-37279

Name of the Vulnerable Software and Affected Versions Grav version 1.8.0-beta.29 Login Plugin versions prior to 3.8.2 Description A missing server-side validation issue exists in the Login::register function of the Login plugin. When user registration is enabled and the groups or access fields ar...

PT-2026-37280

Name of the Vulnerable Software and Affected Versions Grav versions prior to 2.0.0-beta.2 Description An authenticated user with page editing permissions can perform stored Cross-Site Scripting XSS by injecting an executable JavaScript event-handler attribute into rendered image HTML. This occurs...

PT-2026-37275

Name of the Vulnerable Software and Affected Versions Grav versions prior to 2.0.0-beta.2 Description A business logic issue in the Grav Admin Panel allows a low-privileged user with user creation permissions to overwrite existing accounts, including the primary administrator. By creating a new...

grav-exploit

GravCMS 1.10.7 - Unauthenticated Remote Code Execution RCE...

CVE-2026-42845

creationtimestamp| type| source ---|---|--- 2026-04-29 17:56:54+00:00| published-proof-of-concept| https://github.com/getgrav/grav/security/advisories/GHSA-w4rc-p66m-x6qq...

GHSA-J7RW-325J-2RMX Duplicate Advisory: Grav has Insecure Deserialization in File Cache

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-gwfr-jfjf-92vv. This link is maintained to preserve external references. Original Description A vulnerability was found in Grav CMS up to 1.7.49.5/2.0.0-beta.1. Affected by this vulnerability is the function...

Duplicate Advisory: Grav has Insecure Deserialization in File Cache

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-gwfr-jfjf-92vv. This link is maintained to preserve external references. Original Description A vulnerability was found in Grav CMS up to 1.7.49.5/2.0.0-beta.1. Affected by this vulnerability is the function...