CVE-2021-43549

4.8 mediumEPSS 0.7%

Medium (4.8) in osisoft pi web api. EPSS 0.7% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

4.8 medium

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

EPSS: 0.7% chance of exploitation in the next 30 days; higher than 53% of CVEs (scores of 2026-10-31)
CWE: CWE-79
Published: 2021-11-18
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

osisoft:pi_web_api

References

https://us-cert.cisa.gov/ics/advisories/icsa-21-313-06
https://us-cert.cisa.gov/ics/advisories/icsa-21-313-06

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