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OpenAdvisories
Critical · 9.4 CVE-2026-62668 EUVD-2026-62538

Grav API Plugin: Webhook SSRF via Unrestricted cURL Protocols

Published Aug 19, 2026 · Updated Aug 19, 2026 · Assigned by GitHub_M

Description

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

VendorProductAffectedFixed
getgrav grav < 2.0.4 —
getgrav grav-plugin-api < 1.0.6 —

References