{"id":"CVE-2026-54856","published":"2026-10-29T16:18:09.740","lastModified":"2026-10-29T16:20:19.663","description":"Unauthenticated PHP Object Injection in RexCoin <= 1.2.6 versions.","cvssScore":9.8,"cvssSeverity":"CRITICAL","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwes":["CWE-502"],"vendors":[],"products":[],"references":[{"url":"https://patchstack.com/database/wordpress/theme/rexcoin/vulnerability/wordpress-rexcoin-theme-1-2-6-php-object-injection-vulnerability?_s_id=cve","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":{"summary":"The RexCoin application up to version 1.2.6 contains an unauthenticated PHP Object Injection vulnerability (CWE-502), allowing attackers to deserialize arbitrary objects without authentication, potentially leading to remote code execution or other severe impacts due to unsafe deserialization of user-controlled data.","exploitability":"Exploitation is highly trivial as it requires no authentication, no user interaction, and exploits the default PHP deserialization behavior over the network.","blast_radius":"Successful exploitation could lead to full system compromise including remote code execution, data exfiltration, and service disruption across any environment where RexCoin <= 1.2.6 is deployed and exposed.","remediation":"Upgrade to RexCoin version 1.2.7 or later, which contains a fix for the PHP Object Injection vulnerability.","detection":"No reliable host or network indicator is derivable from the published description.","tags":["php-object-injection","unauthenticated","deserialization","rce","web"],"model":"garnet-coder","analyzedAt":"2026-10-30T09:13:15.392Z"}}