PT-2026-76924

Grav Form Plugin before 9.1.19 fails to escape field-definition properties including prepend, append, spacer text, section text, and select option labels in form templates. Attackers with form authoring privileges can inject arbitrary HTML and JavaScript that executes for all form visitors throug...

CVE-2026-74908: Improper Neutralization of Input During Web Page Generation

Grav plugin-api before 1.0.15 contains a script injection vulnerability where the SVG sanitizer only checks for the exact extension 'svg', allowing .svgz and .xhtml files to bypass sanitization and be stored unsanitized. Attackers with api.media.write permission can upload files containing...

PT-2026-76937

Grav before 2.0.14 fails to guard the access field in the core group blueprint with the required security@: admin.super restriction. A delegated admin.users operator can save a group with accessadminsuper=true to escalate to super-admin, gaining scheduler and Twig evaluation capabilities...

PT-2026-76929

grav-plugin-api versions before 1.0.15 fail to validate Twig content in the translate endpoint, allowing attackers with api.pages.write permission to persist pages with process.twig enabled. Attackers can submit crafted header and content parameters to execute server-side template injection...

PT-2026-76936

The Grav API plugin getgrav/grav-plugin-api, bundled with Grav's admin-next/API stack before 1.0.14 fails to enforce the authorize requirement in MenubarController::executeAction. While the GET /menubar/items listing endpoint correctly filters menubar items via userPassesAuthorize, the POST...

PT-2026-76932

The Grav API plugin getgrav/grav-plugin-api, bundled with Grav 2.0 before version 1.0.14 fixed in 1.0.15 contains a missing authorization vulnerability in BlueprintPathResolver::resolveUserScope. The method gates the users/ scope on the account's raw super-admin ACL flag access.api.super instead ...

CVE-2026-75828: Improper Neutralization of Input During Web Page Generation

Grav before 2.0.15 contains a stored cross-site scripting vulnerability in the detectXss function where unpaired quotes in unquoted attribute values bypass event-handler detection. Authenticated editors can inject event handlers like onerror= that pass validation and execute in visitor browsers...

CVE-2026-75835: Missing Authorization

Grav API plugin getgrav/grav-plugin-api before 1.0.14 contains a missing authorization vulnerability in userPassesAuthorize AbstractApiController.php. The function fails to consult the calling request's API key scopes, relying instead on the account's raw super-admin flag and ACL grants. As a...

CVE-2026-74907: Improper Limitation of a Pathname to a Restricted Directory

Grav before 2.0.15 contains a path traversal vulnerability in the static asset server within index.php that uses string prefix matching instead of directory-boundary validation. Unauthenticated attackers can access files in sibling directories by exploiting directory names that extend the base pa...

CVE-2026-75837: Improper Privilege Management

Grav before 2.0.14 fails to guard the access field in the core group blueprint with the required security@: admin.super restriction. A delegated admin.users operator can save a group with accessadminsuper=true to escalate to super-admin, gaining scheduler and Twig evaluation capabilities...

PT-2026-76930

grav-plugin-api getgrav/grav-plugin-api versions = 1.0.0-beta.10 and = 1.0.14 contain a path traversal vulnerability in the PagesController::batchCopy method. An incomplete fix for GHSA-qjq4-jp55-4mx2 left the user-controlled 'suffix' parameter via POST /api/v1/pages/batch unvalidated. An...

PT-2026-76934

Grav before 2.0.14 contains a stored cross-site scripting vulnerability in the Security::detectXss function system/src/Grav/Common/Security.php. All XSS detection patterns use the PCRE /u UTF-8 modifier, so a single invalid UTF-8 byte anywhere in page content causes preg match to return false for...

PT-2026-76933

The Grav API plugin getgrav/grav-plugin-api, bundled with Grav 2.0's admin-next/API stack before version 1.0.14 contains an open redirect weakness in SsoController::sanitizeReturnTo. The function rejects a literal '//' prefix but does not account for browsers normalizing backslashes to slashes in...

EUVD-2026-42943

Grav: Unauthenticated denial of service via unbounded image derivative dimensions...

GHSA-4X9G-VW65-VVF9 Grav: Unauthenticated denial of service via unbounded image derivative dimensions

Summary An unauthenticated visitor exhausts server memory and CPU by requesting an image with oversized resize dimensions. One request drives a worker to several gigabytes of RAM and tens of seconds of CPU. A few concurrent requests take the host down. Details Grav::fallbackUrl...

Grav: Unauthenticated denial of service via unbounded image derivative dimensions

Summary An unauthenticated visitor exhausts server memory and CPU by requesting an image with oversized resize dimensions. One request drives a worker to several gigabytes of RAM and tens of seconds of CPU. A few concurrent requests take the host down. Details Grav::fallbackUrl...

Arbitrary Code Injection

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 Code Injection in the settings validation process of the Flex Objects plugin via uploading a ZIP archive containing PHP code. An...

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 backup profile configuration process. An attacker can access sensitive files outside the intended directory by...

Improper Neutralization of Special Elements Used in a Template Engine

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 Neutralization of Special Elements Used in a Template Engine via the find filter in email-action parameters such as subject, body, to...

Incorrect Authorization

Overview getgrav/grav is a Modern, Crazy Fast, Ridiculously Easy and Amazingly Powerful Flat-File CMS. Affected versions of this package are vulnerable to Incorrect Authorization in the FlexApiController::update process. An attacker can gain full administrative control by exploiting insufficient...