CVE-2021-43551

CVE-2021-43551 is a cross-site scripting (XSS) vulnerability affecting OSIsoft PI Vision, allowing a remote attacker with write access to inject code into a display. If a victim views or interacts with the compromised display using Microsoft Internet Explorer, it could lead to unauthorized information disclosure, modification, or deletion of PI System data and other data accessible with the victim's permissions. The vulnerability has a CVSS score of 5.4 (Medium), indicating a network-based attack with low complexity requiring user interaction. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.