EUVD-2026-77218
GHSA-f9x8-prqh-c2m2
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/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-reachable CSRF requiring authenticated-user browser interaction; low integrity impact only with no confidentiality or availability impact described.
Primary rating from Vendor (jpcert).
CVSS VectorVendor: jpcert
Lifecycle Timeline
3DescriptionCVE.org
Cross-site request forgery vulnerability exists in multiple Contec products. If a user views a specially crafted page while logged in to the affected product, unintended operations may be performed.
AnalysisAI
Cross-site request forgery affects a broad range of Contec industrial data loggers, flow computers, and remote I/O coupler units, allowing network-reachable unauthenticated attackers to trigger unintended device operations against authenticated operator sessions. Per the CVSS 4.0 vector (AV:N/AC:L/UI:A), no attacker privileges are required - only a logged-in user who visits an attacker-controlled web page during an active management session. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a logged-in operator of an affected Contec device to visit an attacker-controlled web page during an active authenticated management session in the same browser. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 base score of 5.1 accurately reflects a moderate, user-interaction-gated vulnerability: AV:N places it network-reachable, but UI:A (active user interaction) materially limits opportunistic exploitation. … 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 | Apply firmware or software updates provided by Contec per the three product-line advisory PDFs published 2026-09-10: contec_security_fl_26091000_en.pdf for FL-series devices, contec_security_cps_26091000_en.pdf for CPS-series remote I/O couplers, and contec_security_ph_26091000_en.pdf for PC Helper products. … Detailed patch versions, workarounds, and compensating controls in full report. |
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OS command injection in Contec FX5000, FX4000, and FX3000 series industrial data loggers and remote I/O units allows aut
Path traversal via FTP in Contec FX5000, FX4000, and FX3000 series industrial programmable controllers allows an authent
Cross-site scripting in Contec FX5000, FX4000, and FX3000 series industrial data loggers allows a low-privileged authent
Same weakness CWE-352 – Cross-Site Request Forgery (CSRF)
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External POC / Exploit Code
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