Vulnerabilities CVE-2026-56708

CVE-2026-56708

Medium

Open

TLP:CLEAR

Grav API Plugin before 1.0.16 SSRF via DNS Rebinding

NVD CVE.org

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Description

Grav API plugin before 1.0.16 contains a server-side request forgery vulnerability in webhook delivery that allows attackers to bypass hostname validation by DNS rebinding. Attackers controlling authoritative DNS for a configured webhook hostname can answer validation lookups with public addresses and delivery lookups with private addresses to reach internal network resources.

Details

CVSS Score: 6.9
CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:L/SI:L/SA:L
Confidence: 90%
Published: Aug 25, 2026
Last Modified: Aug 25, 2026

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