All vulnerabilitiesServers and applications
CVE-2015-8562 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.
Severity High 7.5
Published 16 Dec 2015
Last changed 17 Jun 2026
Added to UpHeron 21 Oct 2026
Sources NVD Affected software Software Affected versions Joomla!Servers and applications · cpe:a:joomla:joomla\! Version 3.4.5 Version 3.4.4 Version 3.4.3 Version 3.4.2 All 95 release lines Version 1.5.0 Version 1.5.1 Version 1.5.2 Version 1.5.3 Version 1.5.4 Version 1.5.6 Version 1.5.7 Version 1.5.8 Version 1.5.9 Version 1.5.10 Version 1.5.11 Version 1.5.12 Version 1.5.13 Version 1.5.14 Version 1.5.15 Version 1.5.16 Version 1.5.17 Version 1.5.18 Version 1.5.19 Version 1.5.20 Version 1.5.21 Version 1.5.22 Version 1.5.23 Version 1.5.24 Version 1.5.25 Version 1.5.26 Version 1.6.0 Version 1.6.1 Version 1.6.2 Version 1.6.3 Version 1.6.4 Version 1.6.5 Version 1.6.6 Version 1.7.0 Version 1.7.1 Version 1.7.2 Version 1.7.3 Version 1.7.4 Version 1.7.5 Version 2.5.0 Version 2.5.1 Version 2.5.2 Version 2.5.3 Version 2.5.4 Version 2.5.5 Version 2.5.6 Version 2.5.7 Version 2.5.8 Version 2.5.9 Version 2.5.10 Version 2.5.11 Version 2.5.12 Version 2.5.13 Version 2.5.14 Version 2.5.15 Version 2.5.16 Version 2.5.17 Version 2.5.18 Version 2.5.19 Version 2.5.20 Version 2.5.21 Version 2.5.22 Version 2.5.23 Version 2.5.24 Version 2.5.25 Version 2.5.26 Version 2.5.27 Version 2.5.28 Version 3.0.0 Version 3.0.1 Version 3.0.2 Version 3.0.3 Version 3.1.0 Version 3.1.1 Version 3.1.2 Version 3.1.3 Version 3.1.4 Version 3.1.5 Version 3.1.6 Version 3.2.0 Version 3.2.1 Version 3.2.2 Version 3.2.3 Version 3.2.4 Version 3.3.0 Version 3.3.1 Version 3.3.2 Version 3.3.3 Version 3.3.4 Version 3.4.0 Version 3.4.1 Version 3.4.2 Version 3.4.3 Version 3.4.4 Version 3.4.5
References NVD https://nvd.nist.gov/vuln/detail/CVE-2015-8562 CVE.org https://www.cve.org/CVERecord?id=CVE-2015-8562