Multiple PHP remote file inclusion vulnerabilities in Nucleus 3.23 allow remote attackers to execute arbitrary PHP code via a URL the DIR_LIBS parameter in (1) path/action.php, and to files in path/nucleus including (2) media.php, (3) /xmlrpc/server.php, and (4) /xmlrpc/api_metaweblog.inc.php. NOTE: this is a similar vulnerability to CVE-2006-2583. NOTE: this issue has been disputed by third parties, who state that the DIR_LIBS parameter is defined in an include file before being used
Severity
CVSS 3.1
9.8 critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
2.2% chance of exploitation in the next 30 days; higher than 82% of CVEs (scores of 2026-10-31)