A Cross-site Scripting issue was discovered in OSIsoft PI Web API versions 2017 R2 and prior.

published 2018-03-14 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-19237

cvss: 6.1; 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 Scripting issue was discovered in OSIsoft PI Web API versions 2017 R2 and prior. Cross-site scripting may occur when input is incorrectly neutralized.

Vendor advisories

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

cisa ICSA-18-072-04 updated 2018-03-13 cvss 4.7

OSIsoft PI Web API

OSIsoft LLC PI Web API <=2017 R2
affected: vendor fix, mitigation “OSIsoft has released the following alert” 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	6.1	CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD	2.0	4.3	AV:N/AC:M/Au:N/C:N/I:P/A:N

Affected products

n/a OSIsoft PI Web API

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation

References

securityfocus.com /bid/103396
vdb-entry, third-party-advisory
ics-cert.us-cert.gov /advisories/ICSA-18-072-04
third-party-advisory, us-government-resource

Sources

CVE List CVE-2018-7508
NVD CVE-2018-7508

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