In Pulse Secure Pulse Connect Secure version 9.0RX before 9.0R3.4, 8.3RX before 8.3R7.1, 8.2RX before 8.2R12.1, and 8.1RX before 8.1R15.1 and Pulse Policy Secure version 9.0RX before 9.0R3.2, 5.4RX before 5.4R7.1, 5.3RX before 5.3R12.1, 5.2RX before 5.2R12.1, and 5.1RX before 5.1R15.1, the admin web interface allows an authenticated attacker to inject and execute commands.

XSS exists in the admin web console in Pulse Secure Pulse Connect Secure (PCS) 9.0RX before 9.0R3.4, 8.3RX before 8.3R7.1, and 8.1RX before 8.1R15.1 and Pulse Policy Secure 9.0RX before 9.0R3.2, 5.4RX before 5.4R7.1, and 5.2RX before 5.2R12.1.

In Pulse Secure Pulse Connect Secure version 9.0RX before 9.0R3.4, 8.3RX before 8.3R7.1, and 8.2RX before 8.2R12.1, users using SAML authentication with the Reuse Existing NC (Pulse) Session option may see authentication leaks.

In Pulse Secure Pulse Connect Secure version 9.0RX before 9.0R3.4 and 8.3RX before 8.3R7.1 and Pulse Policy Secure version 9.0RX before 9.0R3.2 and 5.4RX before 5.4R7.1, an unauthenticated, remote attacker can conduct a session hijacking attack.

In Pulse Secure Pulse Connect Secure version 9.0RX before 9.0R3.4, 8.3RX before 8.3R7.1, 8.2RX before 8.2R12.1, and 8.1RX before 8.1R15.1 and Pulse Policy Secure version 9.0RX before 9.0R3.2, 5.4RX before 5.4R7.1, 5.3RX before 5.3R12.1, 5.2RX before 5.2R12.1, and 5.1RX before 5.1R15.1, an authenticated attacker (via the admin web interface) can send a specially crafted message resulting in a stack buffer overflow.

download.cgi in Pulse Secure Pulse Connect Secure 8.1RX before 8.1R13 and 8.3RX before 8.3R4 and Pulse Policy Secure through 5.2RX before 5.2R10 and 5.4RX before 5.4R4 have an Open Redirect Vulnerability.

A vulnerability has been discovered in login.cgi in Pulse Secure Pulse Connect Secure (PCS) 8.1RX before 8.1R12 and 8.3RX before 8.3R2 and Pulse Policy Secure (PPS) 5.2RX before 5.2R9 and 5.4RX before 5.4R2 wherein an http(s) Host header received from the browser is trusted without validation.