CVE-2026-125359
Mediary Scout before 2026.11.05 contains a server-side request forgery vulnerability that allows any authenticated user, including non-owner accounts, to set an arbitrary PanSou base URL via savePanSouBaseUrlAction without role checks. Attackers can trigger probePanSou() to send server-side POST requests to internal hosts and use distinct error responses as an oracle for internal host and port discovery.
Executive briefing
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Evidence confidence: Not assessed Evidence-derived, not an exploitability verdict
Severity & attack characteristics
CVSS vector:CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/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
Technical explanation & impact
Technical root-cause details are not available in the current source record.
Assess the impact using the published CVSS metrics and the affected vendor component.
Affected products and versions
NVD has not supplied machine-readable vulnerable CPE product/version entries for this CVE. This is an information gap, not proof that no products are affected. Check the vendor advisory references below.
Remediation & validation
- Identify exposure by comparing the affected product and version ranges with your asset inventory, SBOM and externally exposed services.
- Review the linked vendor security advisory or patch notes. Upgrade to a vendor-confirmed fixed release; do not infer a fixed version from the CVE description.
- Until patched, consider restricting network access or disabling the affected feature where operationally safe. These are temporary controls, not a substitute for a vendor fix.
- Validate the remediation with a version check and vulnerability rescan, then retain change evidence.
No fixed version is displayed unless it is explicitly established by a vendor advisory. Follow the vendor's release notes for exact product and branch applicability.
Vendor advisories, patches & exploit references
- https://github.com/fancydirty/mediary-scout VENDOR disclosure@vulncheck.com
- https://github.com/fancydirty/mediary-scout/blob/v2026.10.29/apps/web/lib/pansou-probe.ts#L18-L34 VENDOR disclosure@vulncheck.com
- https://github.com/fancydirty/mediary-scout/commit/9cb9ab5eea492bc8f61f5c4d63f9c6b6800f7e1f VENDOR disclosure@vulncheck.com
- https://github.com/fancydirty/mediary-scout/issues/366 VENDOR disclosure@vulncheck.com
- https://github.com/fancydirty/mediary-scout/releases/tag/v2026.11.05 VENDOR disclosure@vulncheck.com
- https://www.vulncheck.com/advisories/mediary-scout-before-2026.11.05-ssrf-via-pansou-search-source-setting REFERENCE disclosure@vulncheck.com