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OpenVPN Access Server SAML Authentication Cross-Site Scripting Vulnerability

Vulnerability

A cross-site scripting (XSS) vulnerability has been identified in the SAML Authentication module of OpenVPN Access Server. This issue affects versions 2.14.0 through 2.14.3. The vulnerability allows remote SAML Assertion Consumer Service (ACS) endpoint servers to inject arbitrary web scripts or HTML via the RelayState parameter.

Impact

Exploitation of this vulnerability allows for cross-site scripting, where an attacker can inject malicious scripts that are executed in the context of the user's browser.

Remediation

Users can upgrade to OpenVPN Access Server version 3.0.1, which addresses this vulnerability by fixing the SAML relaystate JavaScript injection issue.

Added: Oct 27, 2025, 2:47 PM
Updated: Oct 27, 2025, 2:47 PM

Vulnerability Rating

Custom Algorithm
spread
5.2
impact
1.7
exploitability
6.5
remediation
0.0
relevance
0.8
threat
0.0
urgency
2.9
incentive
1.7

Our algorithm analyzes dozens of metrics to generate these 8 key vulnerability categories, which are then combined to calculate the overall risk score.