EUVD-2026-45080
GHSA-rv94-vqvr-wjjh
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V4 - API and Web Service URL allowlisting, SSRF prevention
MITRE ATT&CK
2 techniques across 2 tactics: Initial Access, Credential Access The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
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Alert meAnalysisAIv1 – Jul 17, 2026
Server-side request forgery in Grav CMS before 2.0.4 allows authenticated users holding the api.webhooks.write permission to register webhooks with dangerous cURL protocol handlers (file://, dict://, gopher://) that fire when webhook events trigger. By abusing these unrestricted protocols an attacker can read local files, enumerate process and service information, and pivot to internal-only network services from the trust position of the Grav server. No public exploit has been identified at time of analysis and it is not listed in CISA KEV; risk is driven by the CWE-918 primitive rather than confirmed in-the-wild activity.
Affected VersionsENISA
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 1 package in euvd
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:H/SA:N
Primary rating from Vendor (VulnCheck) · only source for this CVE.
CVSS VectorVendor: VulnCheck
Lifecycle Timeline
2DescriptionCVE.org
Grav before 2.0.4 fails to restrict cURL protocols in webhook dispatch, allowing authenticated users with api.webhooks.write permission to create webhooks with file://, dict://, or gopher:// URLs. Attackers can trigger webhook events to read local files, access process information, or pivot to internal services via unrestricted protocol handlers.
Executive ViewAI
Grav CMS before version 2.0.4 contains a server-side request forgery vulnerability that allows authenticated users with webhook permissions to read sensitive files and access internal network services. This creates direct risk of data exfiltration and lateral movement within your infrastructure from privileged user accounts.
Within 24 hours, audit and restrict the api.webhooks.write permission to essential users only, and disable webhook functionality if not actively required. Within 7 days, audit all existing webhook configurations for use of file://, dict://, or gopher:// protocols and delete any suspicious entries; implement network-level restrictions to block outbound connections from the Grav server to internal services and enable detailed logging and alerting on webhook registration and execution events. Within 30 days, establish a remediation tracking plan for Grav CMS 2.0.4 deployment once released by the vendor and conduct a comprehensive review of identity and access management for sensitive permissions across all Grav instances.
Restrict api.webhooks.write permission to minimal set of trusted administrators; disable webhook functionality if not operationally required; implement network segmentation and firewall rules to prevent Grav server outbound connections to internal services and databases; enable detailed logging and alerting on webhook registration and execution; conduct regular quarterly access reviews for webhook permissions.
Threat Intelligence Overview
NVD
CVE.org
EPSS
VulDB
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Server-Side Request Forgery exploits applications that fetch remote resources based on user-supplied URLs.
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Exploit-DB