CVE-2026-62668: Getgrav Grav

Critical severity, CVSS 9.4. EPSS: 0.5% chance of exploitation in the next 30 days.

Grav API Plugin is a RESTful API for Grav CMS that provides full headless access to your site's content. Prior to 1.0.6, the Grav API plugin WebhookController.php accepts webhook URLs after only FILTER_VALIDATE_URL syntax validation, and WebhookDispatcher.php initializes cURL without CURLOPT_PROTOCOLS or CURLOPT_REDIR_PROTOCOLS restrictions. An account with api.webhooks.write can submit file, dict, gopher, private-network, or link-local targets, retrieve local files and delivery response bodies, and pivot requests to internal services or cloud metadata endpoints. This issue is fixed in version 1.0.6.

Affected products

• Getgrav Grav: before 2.0.4 (fixed in 2.0.4)
• Getgrav Grav-Plugin-API: before 1.0.6 (fixed in 1.0.6)

Published 2026-08-19. Last modified 2026-09-09.