EUVD-2026-71031
GHSA-77r3-f9wv-hggf
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Network-accessible with no auth required; confidentiality high from verbatim credential disclosure; no integrity or availability impact from this vector.
Primary rating from Vendor (VulnCheck).
CVSS VectorVendor: VulnCheck
Lifecycle Timeline
4DescriptionCVE.org
OpenPanel before 2.3.0 contains an unauthenticated server-side request forgery vulnerability in the /misc/favicon and /misc/og endpoints that accept an attacker-supplied url parameter with insufficient validation. Attackers can force the API to fetch arbitrary internal hosts and cloud metadata endpoints, with small responses returned verbatim enabling credential theft and internal service enumeration.
AnalysisAI
Unauthenticated SSRF in OpenPanel before 2.3.0 exposes two utility endpoints - /misc/favicon and /misc/og - that blindly fetch attacker-supplied URLs without adequate validation. Any remote, unauthenticated attacker can direct the OpenPanel server to query internal network hosts or cloud metadata services (such as AWS IMDSv1 at 169.254.169.254), with response bodies returned verbatim to the attacker, enabling direct theft of cloud IAM credentials and systematic enumeration of internal services. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | No special conditions - remote unauthenticated exploitation against any internet-exposed OpenPanel instance before 2.3.0. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 score of 8.7 (AV:N/AC:L/AT:N/PR:N/UI:N/VC:H) accurately represents the threat: zero preconditions, no authentication, fully automated exploitation, and high confidentiality impact. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Upgrade OpenPanel to version 2.3.0 or later, which introduces sufficient URL validation in the /misc/favicon and /misc/og endpoints per the vendor security advisory at https://github.com/Openpanel-dev/openpanel/security/advisories/GHSA-2hff-m67f-2w2w. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, identify all OpenPanel deployments and their current versions to assess exposure. …
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Same weakness CWE-918 – Server-Side Request Forgery (SSRF)
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External POC / Exploit Code
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