A Cross-Site Request Forgery issue was discovered in OSIsoft PI Web API versions prior to 2017 (1.9.0).

published 2017-08-25 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-16897

cvss: 8.8; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.8%; EPSS 0.8% chance of exploitation in 30 days, percentile 57%
public exploits: 0; none known

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.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-17-164-03 updated 2017-06-13 cvss 7.1

OSIsoft PI Web API 2017

OSIsoft LLC PI Web API < 2017 (1.9.0)
affected: vendor fix, mitigation “Please see alert AL00316 on the OSIsoft web page for more information about this issue” techsupport.osisoft.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

Exploit prediction

0.83% chance of exploitation in the next 30 days, higher than 57% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
NVD	3.0	8.8	CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD	2.0	6.8	AV:N/AC:M/Au:N/C:P/I:P/A:P

Affected products

n/a OSIsoft PI Web API 2017

Classification

Weakness

CWE-352 Cross-Site Request Forgery

References

ics-cert.us-cert.gov /advisories/ICSA-17-164-03
third-party-advisory, us-government-resource
securityfocus.com /bid/99058
vdb-entry, third-party-advisory

Sources

CVE List CVE-2017-7926
NVD CVE-2017-7926

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary