PAX Android based POS devices allow for escalation of privilege via improperly configured scripts. An attacker must have shell access with system account privileges in order to exploit this vulnerability. A patch addressing this issue was included in firmware version PayDroid_8.1.0_Sagittarius_V11.1.61_20240226.
PAX Technology A930 PayDroid_7.1.1_Virgo_V04.5.02_20220722 allows attackers to compile a malicious shared library and use LD_PRELOAD to bypass authorization checks.