Arbitrary File Upload

Overview getgrav/grav is a Modern, Crazy Fast, Ridiculously Easy and Amazingly Powerful Flat-File CMS. Affected versions of this package are vulnerable to Arbitrary File Upload via the blueprint-upload process. An attacker can gain full administrative access by uploading a crafted YAML file to th...

GHSA-3446-6MGW-F79P Grav is Vulnerable to XXE via SVG Upload

Dear Grav Security Team, A security vulnerability was discovered in Grav CMS that allows authenticated attackers to read arbitrary files from the server through XML External Entity XXE injection. Vulnerability Summary | Field | Details | |-------|---------| | Vulnerability Type | XML External...

Directory Traversal

Overview getgrav/grav is a Modern, Crazy Fast, Ridiculously Easy and Amazingly Powerful Flat-File CMS. Affected versions of this package are vulnerable to Directory Traversal via the FormFlash process when the sessionid parameter mapped to form-flash-id in POST requests is not properly sanitized...

GHSA-HMCX-CH82-3FV2 Grav has Unauthenticated Path Traversal & Arbitrary File Write in its FormFlash component

Vulnerability Report: Grav CMS Unauthenticated Path Traversal & Arbitrary File Write ZERO-DAY Unauthenticated Path Traversal leading to Arbitrary Directory Creation and Configuration Injection Summary Grav CMS v1.7.49.5 and latest development source is vulnerable to a Zero-Day Path Traversal...

Grav has multiple RCE vectors: unsafe unserialize (x3), command injection in git clone, SSTI blocklist bypass

Multiple RCE vectors were found in Grav CMS. Three are critical, two are high. 1. Unsafe unserialize in JobQueue — direct RCE gadget Critical system/src/Grav/Common/Scheduler/JobQueue.php:465 calls unserializebase64decode... without restricting allowedclasses. The Job class has...

GHSA-VJ3M-2G9H-VM4P Grav has multiple RCE vectors: unsafe unserialize (x3), command injection in git clone, SSTI blocklist bypass

Multiple RCE vectors were found in Grav CMS. Three are critical, two are high. 1. Unsafe unserialize in JobQueue — direct RCE gadget Critical system/src/Grav/Common/Scheduler/JobQueue.php:465 calls unserializebase64decode... without restricting allowedclasses. The Job class has...

Cross-site Scripting (XSS)

Overview getgrav/grav is a Modern, Crazy Fast, Ridiculously Easy and Amazingly Powerful Flat-File CMS. Affected versions of this package are vulnerable to Cross-site Scripting XSS via the detectXss function. An attacker can execute arbitrary JavaScript in the context of users who view compromised...

GHSA-3F29-PQWF-V4J4 Grav Vulnerable to Sensitive Information Disclosure via Accounts Service Bypass

Summary Information disclosure exists in Grav CMS v1.8.0-beta.29. Despite previous security patches notably in v1.8.0-beta.27/28 aimed at restricting sensitive object access within the Twig environment, the Accounts Service remains exposed. A low-privileged user EX: Content Editor with only...

GHSA-C2Q3-P4JR-C55F Grav Vulnerable to XSS via Taxonomy Field Values in Admin Panel

Summary A Stored Cross-Site Scripting XSS vulnerability exists in the Grav CMS Form plugin's select field template. Taxonomy tag and category values are rendered with the Twig |raw filter in the admin panel, bypassing the global autoescape protection. An editor-level user can inject arbitrary...

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...

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...

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-2026-37273

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...

grav-exploit

GravCMS 1.10.7 - Unauthenticated Remote Code Execution RCE...

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...

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...

CVE-2026-7317

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 FileCache::doGet of the file system/src/Grav/Framework/Cache/Adapter/FileCache.php of the component Cache Value Handler. The manipulation results in deserialization. The attack may be...

CVE-2026-7317 Grav CMS Cache Value FileCache.php doGet deserialization

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 FileCache::doGet of the file system/src/Grav/Framework/Cache/Adapter/FileCache.php of the component Cache Value Handler. The manipulation results in deserialization. The attack may be...

CVE-2026-7317

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 FileCache::doGet of the file system/src/Grav/Framework/Cache/Adapter/FileCache.php of the component Cache Value Handler. The manipulation results in deserialization. The attack may be...

CVE-2026-7317 Grav CMS Cache Value FileCache.php doGet deserialization

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 FileCache::doGet of the file system/src/Grav/Framework/Cache/Adapter/FileCache.php of the component Cache Value Handler. The manipulation results in deserialization. The attack may be...