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 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...

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...

Improper Enforcement of a Single, Unique Action

Overview getgrav/grav is a Modern, Crazy Fast, Ridiculously Easy and Amazingly Powerful Flat-File CMS. Affected versions of this package are vulnerable to Improper Enforcement of a Single, Unique Action through the user creation process. An attacker can remove administrative privileges and disrup...

Grav Vulnerable to Administrative Account Disruption and Privilege De-escalation via User Overwrite Logic

Summary A business logic vulnerability in the Grav Admin Panel allows a low-privileged user with only user creation permissions to overwrite existing accounts, including the primary administrator. By creating a new user with a username that already exists, the system updates the existing account'...

GHSA-RR73-568V-28F8 Grav Vulnerable to Administrative Account Disruption and Privilege De-escalation via User Overwrite Logic

Summary A business logic vulnerability in the Grav Admin Panel allows a low-privileged user with only user creation permissions to overwrite existing accounts, including the primary administrator. By creating a new user with a username that already exists, the system updates the existing account'...

GHSA-GWFR-JFJF-92VV Grav has Insecure Deserialization in File Cache

Insecure Deserialization in File Cache - Severity: High - CWE: CWE-502 - Location: system/src/Grav/Framework/Cache/Adapter/FileCache.php - Sink: unserialize$value, 'allowedclasses' = true Affected versions - Affected: = 1.7.44 and true allows object instantiation and does not constrain classes. P...

Grav has Insecure Deserialization in File Cache

Insecure Deserialization in File Cache - Severity: High - CWE: CWE-502 - Location: system/src/Grav/Framework/Cache/Adapter/FileCache.php - Sink: unserialize$value, 'allowedclasses' = true Affected versions - Affected: = 1.7.44 and true allows object instantiation and does not constrain classes. P...

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...

Grav Vulnerable to Publisher-Level Stored XSS via Unquoted Event Attributes

Summary A stored Cross-Site Scripting XSS vulnerability in getgrav/grav allows publisher-level accounts to execute arbitrary JavaScript. The issue arises from a blacklist bypass in the detectXss function when handling unquoted HTML event attributes. Details The detectXss function relies on a...

GHSA-9695-8FR9-HW5Q Grav Vulnerable to Publisher-Level Stored XSS via Unquoted Event Attributes

Summary A stored Cross-Site Scripting XSS vulnerability in getgrav/grav allows publisher-level accounts to execute arbitrary JavaScript. The issue arises from a blacklist bypass in the detectXss function when handling unquoted HTML event attributes. Details The detectXss function relies on a...

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...

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...

Grav Vulnerable to Privilege Escalation via Missing Server-Side Validation of groups/access

Bug Report: Registration Privilege Escalation via Missing Server-Side Validation of groups/access Summary The Login::register method in the Login plugin accepts attacker-controlled groups and access fields from the registration POST data without server-side validation. When registration is enable...

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...

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 in the rendering of taxonomy field values in the admin panel, where user-supplied input is output using the |raw filt...

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...