Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

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.

Security Impact Summary

CVE-2015-8562 is a security vulnerability that . Impacting 1 product from joomla organizations running these solutions should prioritize assessment and patching.

Historical Context

First disclosed in 2015, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.

Published

2015-12-16T21:59:06.390

Last Modified

2025-04-12T10:46:40.837

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 7.5 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:P/I:P/A:P

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: PARTIAL
Availability Impact: PARTIAL

Exploitability Score

10.0

Impact Score

6.4

Weaknesses

Type: Primary
CWE-20

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	joomla	joomla\!	1.5.0	Yes
Application	joomla	joomla\!	1.5.1	Yes
Application	joomla	joomla\!	1.5.2	Yes
Application	joomla	joomla\!	1.5.3	Yes
Application	joomla	joomla\!	1.5.4	Yes
Application	joomla	joomla\!	1.5.6	Yes
Application	joomla	joomla\!	1.5.7	Yes
Application	joomla	joomla\!	1.5.8	Yes
Application	joomla	joomla\!	1.5.9	Yes
Application	joomla	joomla\!	1.5.10	Yes
Application	joomla	joomla\!	1.5.11	Yes
Application	joomla	joomla\!	1.5.12	Yes
Application	joomla	joomla\!	1.5.13	Yes
Application	joomla	joomla\!	1.5.14	Yes
Application	joomla	joomla\!	1.5.15	Yes
Application	joomla	joomla\!	1.5.16	Yes
Application	joomla	joomla\!	1.5.17	Yes
Application	joomla	joomla\!	1.5.18	Yes
Application	joomla	joomla\!	1.5.19	Yes
Application	joomla	joomla\!	1.5.20	Yes
Application	joomla	joomla\!	1.5.21	Yes
Application	joomla	joomla\!	1.5.22	Yes
Application	joomla	joomla\!	1.5.23	Yes
Application	joomla	joomla\!	1.5.24	Yes
Application	joomla	joomla\!	1.5.25	Yes
Application	joomla	joomla\!	1.5.26	Yes
Application	joomla	joomla\!	1.6.0	Yes
Application	joomla	joomla\!	1.6.1	Yes
Application	joomla	joomla\!	1.6.2	Yes
Application	joomla	joomla\!	1.6.3	Yes
Application	joomla	joomla\!	1.6.4	Yes
Application	joomla	joomla\!	1.6.5	Yes
Application	joomla	joomla\!	1.6.6	Yes
Application	joomla	joomla\!	1.7.0	Yes
Application	joomla	joomla\!	1.7.1	Yes
Application	joomla	joomla\!	1.7.2	Yes
Application	joomla	joomla\!	1.7.3	Yes
Application	joomla	joomla\!	1.7.4	Yes
Application	joomla	joomla\!	1.7.5	Yes
Application	joomla	joomla\!	2.5.0	Yes
Application	joomla	joomla\!	2.5.1	Yes
Application	joomla	joomla\!	2.5.2	Yes
Application	joomla	joomla\!	2.5.3	Yes
Application	joomla	joomla\!	2.5.4	Yes
Application	joomla	joomla\!	2.5.5	Yes
Application	joomla	joomla\!	2.5.6	Yes
Application	joomla	joomla\!	2.5.7	Yes
Application	joomla	joomla\!	2.5.8	Yes
Application	joomla	joomla\!	2.5.9	Yes
Application	joomla	joomla\!	2.5.10	Yes
Application	joomla	joomla\!	2.5.11	Yes
Application	joomla	joomla\!	2.5.12	Yes
Application	joomla	joomla\!	2.5.13	Yes
Application	joomla	joomla\!	2.5.14	Yes
Application	joomla	joomla\!	2.5.15	Yes
Application	joomla	joomla\!	2.5.16	Yes
Application	joomla	joomla\!	2.5.17	Yes
Application	joomla	joomla\!	2.5.18	Yes
Application	joomla	joomla\!	2.5.19	Yes
Application	joomla	joomla\!	2.5.20	Yes
Application	joomla	joomla\!	2.5.21	Yes
Application	joomla	joomla\!	2.5.22	Yes
Application	joomla	joomla\!	2.5.23	Yes
Application	joomla	joomla\!	2.5.24	Yes
Application	joomla	joomla\!	2.5.25	Yes
Application	joomla	joomla\!	2.5.26	Yes
Application	joomla	joomla\!	2.5.27	Yes
Application	joomla	joomla\!	2.5.28	Yes
Application	joomla	joomla\!	3.0.0	Yes
Application	joomla	joomla\!	3.0.1	Yes
Application	joomla	joomla\!	3.0.2	Yes
Application	joomla	joomla\!	3.0.3	Yes
Application	joomla	joomla\!	3.1.0	Yes
Application	joomla	joomla\!	3.1.1	Yes
Application	joomla	joomla\!	3.1.2	Yes
Application	joomla	joomla\!	3.1.3	Yes
Application	joomla	joomla\!	3.1.4	Yes
Application	joomla	joomla\!	3.1.5	Yes
Application	joomla	joomla\!	3.1.6	Yes
Application	joomla	joomla\!	3.2.0	Yes
Application	joomla	joomla\!	3.2.1	Yes
Application	joomla	joomla\!	3.2.2	Yes
Application	joomla	joomla\!	3.2.3	Yes
Application	joomla	joomla\!	3.2.4	Yes
Application	joomla	joomla\!	3.3.0	Yes
Application	joomla	joomla\!	3.3.1	Yes
Application	joomla	joomla\!	3.3.2	Yes
Application	joomla	joomla\!	3.3.3	Yes
Application	joomla	joomla\!	3.3.4	Yes
Application	joomla	joomla\!	3.4.0	Yes
Application	joomla	joomla\!	3.4.1	Yes
Application	joomla	joomla\!	3.4.2	Yes
Application	joomla	joomla\!	3.4.3	Yes
Application	joomla	joomla\!	3.4.4	Yes
Application	joomla	joomla\!	3.4.5	Yes

References

http://packetstormsecurity.com/files/134949/Joomla-HTTP-Header-Unauthenticated-Remote-Code-Execution.html Exploit ([email protected])
http://packetstormsecurity.com/files/135100/Joomla-3.4.5-Object-Injection.html ([email protected])
http://www.rapid7.com/db/modules/exploit/multi/http/joomla_http_header_rce ([email protected])
http://www.securityfocus.com/archive/1/537219/100/0/threaded ([email protected])
http://www.securityfocus.com/bid/79195 ([email protected])
https://blog.sucuri.net/2015/12/remote-command-execution-vulnerability-in-joomla.html Exploit ([email protected])
https://developer.joomla.org/security-centre/630-20151214-core-remote-code-execution-vulnerability.html Vendor Advisory ([email protected])
https://www.exploit-db.com/exploits/38977/ Exploit ([email protected])
https://www.exploit-db.com/exploits/39033/ Exploit ([email protected])
http://packetstormsecurity.com/files/134949/Joomla-HTTP-Header-Unauthenticated-Remote-Code-Execution.html Exploit (af854a3a-2127-422b-91ae-364da2661108)
http://packetstormsecurity.com/files/135100/Joomla-3.4.5-Object-Injection.html (af854a3a-2127-422b-91ae-364da2661108)
http://www.rapid7.com/db/modules/exploit/multi/http/joomla_http_header_rce (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/archive/1/537219/100/0/threaded (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/79195 (af854a3a-2127-422b-91ae-364da2661108)
https://blog.sucuri.net/2015/12/remote-command-execution-vulnerability-in-joomla.html Exploit (af854a3a-2127-422b-91ae-364da2661108)
https://developer.joomla.org/security-centre/630-20151214-core-remote-code-execution-vulnerability.html Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.exploit-db.com/exploits/38977/ Exploit (af854a3a-2127-422b-91ae-364da2661108)
https://www.exploit-db.com/exploits/39033/ Exploit (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For joomla's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.