How to fix EUVD-2025-18216?

Within 30 days: Identify affected systems running AVEVA PI Connector for CygNet and apply vendor patches as part of regular patch cycle. Verify Content-Security-Policy and output encoding.

Is AVEVA PI Connector affected by EUVD-2025-18216?

Organizations using AVEVA PI Connector for CygNet should be aware of moderate risk from CVE-2025-4417, a cross-site scripting vulnerability rated CVSS 5.5. Attackers could inject scripts to steal sessions or perform actions as authenticated users.

AVEVA PI Connector EUVD-2025-18216

| CVE-2025-4417 MEDIUM

Cross-site Scripting (XSS) (CWE-79)

2025-06-12 [email protected]

XSS

5.5

CVSS 3.1

CVSS VectorNVD

CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:C/C:N/I:H/A:N

Attack Vector

Local

Attack Complexity

Low

Privileges Required

High

User Interaction

Required

Scope

Changed

Confidentiality

None

Integrity

High

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 14, 2026 - 21:20 vuln.today

EUVD ID Assigned

Mar 14, 2026 - 21:20 euvd

EUVD-2025-18216

CVE Published

Jun 12, 2025 - 20:15 nvd

MEDIUM 5.5

DescriptionNVD

A cross-site scripting vulnerability exists in AVEVA PI Connector for CygNet Versions 1.6.14 and prior that, if exploited, could allow an administrator miscreant with local access to the connector admin portal to persist arbitrary JavaScript code that will be executed by other users who visit affected pages.

Analysis

Technical ContextAI

Cross-site scripting (XSS) allows injection of client-side scripts into web pages viewed by other users due to insufficient output encoding.

RemediationAI

Encode all user-supplied output contextually (HTML, JS, URL). Implement Content Security Policy (CSP) headers. Use HTTPOnly and Secure cookie flags.

EUVD-2025-18216 vulnerability details – vuln.today

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