CVE-2017-7926: Osisoft Pi Web API

High severity, CVSS 8.8. EPSS: 0.8% chance of exploitation in the next 30 days.

A Cross-Site Request Forgery issue was discovered in OSIsoft PI Web API versions prior to 2017 (1.9.0). The vulnerability allows cross-site request forgery (CSRF) attacks to occur when an otherwise-unauthorized cross-site request is sent from a browser the server has previously authenticated.

Affected products

• Osisoft Pi Web API: version 1.8 only

Published 2017-08-25. Last modified 2026-06-17.