Openfind's Mail2000 has a vulnerability that allows the HttpOnly flag to be bypassed. Unauthenticated remote attackers can exploit this vulnerability using specific JavaScript code to obtain the session cookie with the HttpOnly flag enabled.
https://www.twcert.org.tw/tw/cp-132-7940-0177a-1.html
https://www.twcert.org.tw/en/cp-139-7941-b66e7-2.html
https://www.openfind.com.tw/taiwan/download/Openfind_OF-ISAC-24-007.pdf