EUVD-2026-38072Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:L/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 SSRF requiring low-privilege configure permission (PR:L) enables full internal network reconnaissance (C:H, S:C) and conditional integrity impact on internal services via gopher payloads (I:L).
Primary rating from Vendor (GitHub_M).
CVSS VectorVendor: GitHub_M
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:L/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
Lifecycle Timeline
2DescriptionCVE.org
Mercator is an open source web application that enables mapping of the information system. Prior to version 2025.05.19, a Server-Side Request Forgery (SSRF) vulnerability exists in Mercator's CVE configuration panel (/admin/config/parameters). The testProvider() method in ConfigurationController passes user-supplied input directly to curl_init() without validating the scheme, hostname, or destination IP address. An authenticated user with the configure permission can force the Mercator server to issue arbitrary outbound network requests. The suffix /api/dbInfo appended to the URL can be bypassed by injecting a # fragment character (e.g. http://TARGET/PATH#), allowing full control over the target URL. No scheme whitelist, host whitelist, or private/loopback IP block is applied. The telnet:// scheme can be used for internal port scanning; the gopher:// scheme enables interaction with unauthenticated internal services (Redis, Memcached), potentially leading to Remote Code Execution under specific deployment conditions. Version 2025.05.19 patches the issue.
AnalysisAI
Server-Side Request Forgery in Mercator's CVE configuration panel allows authenticated users holding the low-privilege 'configure' permission to coerce the application server into issuing arbitrary outbound network requests to any internal or external host. Affected versions prior to 2025.05.19 pass user-supplied URLs directly to curl_init() in ConfigurationController::testProvider() with no scheme, hostname, or private-IP validation; the intended /api/dbInfo suffix restriction is trivially defeated by appending a # fragment character, granting full URL control. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires an authenticated Mercator session where the user account holds the explicitly granted 'configure' permission - this is a non-default, operator-assigned privilege, not a permission held by all authenticated users. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The provided CVSS 4.0 score of 5.3 with SC:L/SI:N/SA:N materially understates real-world risk: the CVE description and tags ('RCE', 'Redis') explicitly confirm that subsequent-system RCE is achievable, not merely theoretical - SC:L and SI:N do not reflect the gopher-to-Redis code execution path. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker holding a Mercator account with the 'configure' permission navigates to /admin/config/parameters and submits a crafted URL such as gopher://192.168.1.50:6379/_%0D%0ASET%20... followed by a # fragment, bypassing the /api/dbInfo suffix enforcement. … |
| Remediation | Vendor-released patch: Mercator version 2025.05.19, which addresses the SSRF by adding validation inside ConfigurationController::testProvider(). … Detailed patch versions, workarounds, and compensating controls in full report. |
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External POC / Exploit Code
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