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CVE-2015-8562

Joomla! 1.5.x, 2.x, and 3.x before 3.4.6 allow remote attackers to conduct PHP object injection...

7.5 HighPublic exploit

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.

Exploit likelihood

98.2%Up 4.3 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 7.5

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.

Record
CVE-2015-8562
CVSS 2.0
7.5 HighAV:N/AC:L/Au:N/C:P/I:P/A:P
Weakness
CWE-20
Updated
2026-11-02
CVE List No score

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.

Record
CVE-2015-8562
Updated
2026-11-02
EUVDEUVD-2015-8441 No score

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.

Record
EUVD-2015-8441
Updated
2026-11-03
GitHub AdvisoriesGHSA-pccq-v233-rx3q No score

Joomla! 1.5.x, 2.x, and 3.x before 3.4.6 allow remote attackers to conduct PHP object injection...

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.

Record
GHSA-pccq-v233-rx3q
Weakness
CWE-20
Updated
2026-11-02

Affected products

Public exploits

Links only. Every CVE stores no exploit code.

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Public exploits
SourceLinkDate
PoC in GitHubdrolley919/joomla-cve-2015-8562-exploit-and-linux-forensic-analysis2026-06-22
PoC in GitHubguanjivip/CVE-2015-85622020-07-25
PoC in GitHublorenzodegiorgi/setup-cve-2015-85622021-05-03
PoC in GitHubthejackerz/scanner-exploit-joomla-CVE-2015-85622016-06-07
PoC in GitHubxnorkl/Joomla_Payload2020-02-07

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, Exploit-DB, GitHub Advisories, Metasploit, Nuclei, NVD, PoC in GitHub

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2015-8562 is a high vulnerability (CVSS 7.5) in Joomla Joomla\!, published December 16, 2015. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 98.2%, the 99th percentile. No source names a fixed version.

References

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