{"id":"CVE-2015-8562","aliases":[],"url":"https://o3.security/vulnerability/CVE-2015-8562","summary":"Joomla! 1.5.x, 2.x, and 3.x before 3.4.6 allow remote attackers to conduct PHP object injection attacks and execute arbitrary PHP code via the HTTP User-Agent header, as exploited in…","details":"Joomla! 1.5.x, 2.x, and 3.x before 3.4.6 allow remote attackers to conduct PHP object injection attacks and execute arbitrary PHP code via the HTTP User-Agent header, as exploited in the wild in December 2015.","published":"2015-12-16T21:59:06.390","modified":"2026-06-17T00:34:46.897","cvss":null,"epss":{"score":0.98283,"percentile":0.99912,"asOf":"2026-09-04"},"cisaKev":null,"exploitsKnown":14,"affectedPackages":[],"fix":null,"references":[{"type":"EXPLOIT","url":"http://packetstormsecurity.com/files/134949/Joomla-HTTP-Header-Unauthenticated-Remote-Code-Execution.html"},{"type":"WEB","url":"http://packetstormsecurity.com/files/135100/Joomla-3.4.5-Object-Injection.html"},{"type":"WEB","url":"http://www.rapid7.com/db/modules/exploit/multi/http/joomla_http_header_rce"},{"type":"WEB","url":"http://www.securityfocus.com/archive/1/537219/100/0/threaded"},{"type":"WEB","url":"http://www.securityfocus.com/bid/79195"},{"type":"EXPLOIT","url":"https://blog.sucuri.net/2015/12/remote-command-execution-vulnerability-in-joomla.html"},{"type":"ADVISORY","url":"https://developer.joomla.org/security-centre/630-20151214-core-remote-code-execution-vulnerability.html"},{"type":"EXPLOIT","url":"https://www.exploit-db.com/exploits/38977/"},{"type":"EXPLOIT","url":"https://www.exploit-db.com/exploits/39033/"},{"type":"EXPLOIT","url":"http://packetstormsecurity.com/files/134949/Joomla-HTTP-Header-Unauthenticated-Remote-Code-Execution.html"},{"type":"WEB","url":"http://packetstormsecurity.com/files/135100/Joomla-3.4.5-Object-Injection.html"},{"type":"WEB","url":"http://www.rapid7.com/db/modules/exploit/multi/http/joomla_http_header_rce"},{"type":"WEB","url":"http://www.securityfocus.com/archive/1/537219/100/0/threaded"},{"type":"WEB","url":"http://www.securityfocus.com/bid/79195"},{"type":"EXPLOIT","url":"https://blog.sucuri.net/2015/12/remote-command-execution-vulnerability-in-joomla.html"},{"type":"ADVISORY","url":"https://developer.joomla.org/security-centre/630-20151214-core-remote-code-execution-vulnerability.html"},{"type":"EXPLOIT","url":"https://www.exploit-db.com/exploits/38977/"},{"type":"EXPLOIT","url":"https://www.exploit-db.com/exploits/39033/"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-06-17T00:34:46.897"}}