CVE-2008-0233

CVE-2008-0233 describes an unrestricted file upload vulnerability in Zero CMS 1.0 Alpha and earlier versions. This flaw allows remote, unauthenticated attackers to bypass access controls and upload arbitrary files, such as malicious avatars, by exploiting the system's acceptance of certain Content-Types like image/jpeg. With a CVSS score of 7.5, this vulnerability is considered highly severe due to its network-based attack vector, low attack complexity, and potential for complete compromise of confidentiality, integrity, and availability. While not listed on CISA's KEV catalog, exploit code is publicly available on ExploitDB, though there is no evidence of active exploitation or significant community discussion.