CVE-2026-42612

Grav is a file-based Web platform. Prior to 2.0.0-beta.2, 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 attribute...

CVE-2026-42845

The form plugin for Grav adds the ability to create and use forms. Prior to 9.1.0 , there is an unauthenticated page-content overwrite via file upload GHSA-w4rc-p66m-x6qq. Public form uploads now strip path components from the POST-supplied filename and hard-block page-content extensions md, yaml...

CVE-2026-42608

Grav is a file-based Web platform. Prior to 2.0.0-beta.2, there is a Path Traversal vulnerability within the FormFlash core component. By manipulating the sessionid passed as form-flash-id in POST requests, an unauthenticated attacker can traverse the filesystem to create arbitrary directories an...

CVE-2026-42613

Grav is a file-based Web platform. Prior to 2.0.0-beta.2, 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 enabled and groups or access are included in the...

CVE-2026-42611

Grav is a file-based Web platform. Prior to 2.0.0-beta.2, a low-privileged with the ability to create a page user can cause XSS with the injection of svg element. The XSS can further be escalated to dump the entire system information available under /admin/config/info whenever a Super Admin visit...

CVE-2026-42844

Grav is a file-based Web platform. In Grav 2.0.0-beta.2, a low-privileged authenticated API user with api.media.write can abuse /api/v1/blueprint-upload to write an arbitrary YAML file into user/accounts/, then log in as the newly created account with api.super privileges. This results in full...

Sensitive Information Disclosure

Grav is vulnerable to Sensitive Information Disclosure. The vulnerability is due to an overly permissive Twig sandbox allow-list, where users with the admin.pages role can invoke config.toArray to expose the site's merged configuration, allowing attackers to retrieve sensitive information such as...

📄 Grav CMS Shell Upload

The Grav CMS Direct Install feature in the Admin plugin allows administrators to upload plugins as ZIP files. The system failed to adequately validate the contents of the ZIP archive or prevent path traversal Zip Slip during extraction. By crafting a malicious plugin that hooks into Grav events...

Grav CMS 2.0.0-beta.2 - Remote Code Execution

Exploit Title: Grav CMS 'onPluginsInitialized', 0; public function onPluginsInitialized: void $shellpath = GRAVROOT . '/shell.php'; if !fileexists$shellpath fileputcontents$shellpath, ''; ---------------------- 2. Compress t...

Improper Access Control

getgrav/grav-plugin-api is vulnerable to Improper Access Control. The vulnerability is due to an insecure direct object reference and flawed permission update logic in UsersController::update, which allows an attacker to escalate privileges to Super Administrator and gain full system access...

Exploit for Improper Access Control in Getgrav Grav-Plugin-Admin

CVE-2021-21425 - GravCMS Unauthenticated RCE Unauthenticated...

CVE-2026-44738

Grav is a file-based Web platform. Prior to 2.0.0-rc.2, the Twig sandbox allow-list permits any user with the admin.pages role to call config.toArray from within a page body, dumping the entire merged site configuration — including all plugin secrets SMTP passwords, AWS keys, OAuth client secrets...

CVE-2026-42609

Grav is a file-based Web platform. Prior to 2.0.0-beta.2, 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 alread...

Grav: Twig sandbox allows editor-role users to exfiltrate all plugin secrets via Config::toArray()

Summary The Twig sandbox allow-list permits any user with the admin.pages role to call config.toArray from within a page body, dumping the entire merged site configuration — including all plugin secrets SMTP passwords, AWS keys, OAuth client secrets, API tokens — into the rendered HTML. No...

EUVD-2026-29135

Grav: Twig sandbox allows editor-role users to exfiltrate all plugin secrets via Config::toArray...

CVE-2026-42844

Grav is a file-based Web platform. In Grav 2.0.0-beta.2, a low-privileged authenticated API user with api.media.write can abuse /api/v1/blueprint-upload to write an arbitrary YAML file into user/accounts/, then log in as the newly created account with api.super privileges. This results in full...

CVE-2026-42844

Grav is a file-based Web platform. In Grav 2.0.0-beta.2, a low-privileged authenticated API user with api.media.write can abuse /api/v1/blueprint-upload to write an arbitrary YAML file into user/accounts/, then log in as the newly created account with api.super privileges. This results in full...

CVE-2026-42844

Grav 2.0.0-beta.2 contains an authenticated API privilege-escalation in the blueprint-upload flow. A low-privileged API user (api.media.write) can write an arbitrary YAML file into user/accounts/ via /api/v1/blueprint-upload, then log in as the created account with api.super, resulting in full ad...

CVE-2026-42844 Grav: Low-privileged API users can create super-admin accounts via blueprint-upload

Grav is a file-based Web platform. In Grav 2.0.0-beta.2, a low-privileged authenticated API user with api.media.write can abuse /api/v1/blueprint-upload to write an arbitrary YAML file into user/accounts/, then log in as the newly created account with api.super privileges. This results in full...

CVE-2026-42844 Grav: Low-privileged API users can create super-admin accounts via blueprint-upload

Grav is a file-based Web platform. In Grav 2.0.0-beta.2, a low-privileged authenticated API user with api.media.write can abuse /api/v1/blueprint-upload to write an arbitrary YAML file into user/accounts/, then log in as the newly created account with api.super privileges. This results in full...