In Pulse Secure Pulse Connect Secure (PCS) before 8.1R15.1, 8.2 before 8.2R12.1, 8.3 before 8.3R7.1, and 9.0 before 9.0R3.4 and Pulse Policy Secure (PPS) before 5.1R15.1, 5.2 before 5.2R12.1, 5.3 before 5.3R15.1, 5.4 before 5.4R7.1, and 9.0 before 9.0R3.2, an authenticated attacker (via the admin web interface) can exploit Incorrect Access Control to execute arbitrary code on the appliance.
https://www.kb.cert.org/vuls/id/927237
https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44101/