What is CVE-2021-43549?

CVE-2021-43549 is a medium-severity vulnerability in Osisoft Pi Web Api, classified under Cross-site Scripting. CVSS score: 6.9/10. Published 2021-11-18.

How severe is CVE-2021-43549?

Medium severity. CVSS v3 base score is 6.9 out of 10.

XSS in Osisoft Pi Web Api

CVE-2021-43549

A remote authenticated attacker with write access to a PI Server could trick a user into interacting with a PI Web API endpoint and redirect them to a malicious website. As a result, a victim may disclose sensitive information to the attacker or be provided with false information.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.007 (48.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:L/A:N.

Affected products

Osisoft Pi Web Api — versions All versions
Osisoft Pi_web_api

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

ics-cert@hq.dhs.gov (US Government Resource, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-43549?: CVE-2021-43549 is a medium-severity vulnerability in Osisoft Pi Web Api, classified under Cross-site Scripting. CVSS score: 6.9/10. Published 2021-11-18.
How severe is CVE-2021-43549?: Medium severity. CVSS v3 base score is 6.9 out of 10.