What’s Vulnerable › Vulnerabilities

CVE-2026-62668: Grav API Plugin: Webhook SSRF via Unrestricted cURL Protocols

• Severity: critical (CVSS 9.4 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-19 · updated 2026-10-26
• Weakness: CWE-918

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

• getgrav grav: before 2.0.4
• getgrav grav-plugin-api: before 1.0.6

References

• https://github.com/getgrav/grav-plugin-api/commit/dfcc947f0d6758772caac290c68fe8d4c4a4874e
• https://github.com/getgrav/grav-plugin-api/releases/tag/1.0.6
• https://github.com/getgrav/grav/security/advisories/GHSA-58q8-f7v4-w2vf
• https://github.com/getgrav/grav/security/advisories/GHSA-58q8-f7v4-w2vf

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