Open Source Classifieds does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate, related to use of the PHP fsockopen function.

myprofile.asp in Enthrallweb eClassifieds does not properly validate the MM_recordId parameter during profile updates, which allows remote authenticated users to modify certain profile fields of another account by specifying that account's username in a modified MM_recordId parameter.

Multiple SQL injection vulnerabilities in Enthrallweb eClassifieds allow remote attackers to execute arbitrary SQL commands via the (1) AD_ID, (2) cat_id, (3) sub_id, and (4) ad_id parameters to (a) ad.asp, the (5) cid parameter to (b) dircat.asp, and the (6) sid parameter to (c) dirSub.asp.