CVE-2015-8562

Name: CVE-2015-8562
Creator: NVD / NIST
Published: 2015-12-16T21:59:06.39+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 98.28%

Last modified Jun 17, 2026

CVE-2015-8562 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 98.28% chance of exploitation in the next 30 days.

Description

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.

Metrics

EPSS Probability

98.28%

99.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Joomla	Joomla\!	1.5.0
Joomla	Joomla\!	1.5.1
Joomla	Joomla\!	1.5.2
Joomla	Joomla\!	1.5.3
Joomla	Joomla\!	1.5.4
Joomla	Joomla\!	1.5.6
Joomla	Joomla\!	1.5.7
Joomla	Joomla\!	1.5.8
Joomla	Joomla\!	1.5.9
Joomla	Joomla\!	1.5.10
Joomla	Joomla\!	1.5.11
Joomla	Joomla\!	1.5.12
Joomla	Joomla\!	1.5.13
Joomla	Joomla\!	1.5.14
Joomla	Joomla\!	1.5.15
Joomla	Joomla\!	1.5.16
Joomla	Joomla\!	1.5.17
Joomla	Joomla\!	1.5.18
Joomla	Joomla\!	1.5.19
Joomla	Joomla\!	1.5.20
Joomla	Joomla\!	1.5.21
Joomla	Joomla\!	1.5.22
Joomla	Joomla\!	1.5.23
Joomla	Joomla\!	1.5.24
Joomla	Joomla\!	1.5.25
Joomla	Joomla\!	1.5.26
Joomla	Joomla\!	1.6.0
Joomla	Joomla\!	1.6.1
Joomla	Joomla\!	1.6.2
Joomla	Joomla\!	1.6.3
Joomla	Joomla\!	1.6.4
Joomla	Joomla\!	1.6.5
Joomla	Joomla\!	1.6.6
Joomla	Joomla\!	1.7.0
Joomla	Joomla\!	1.7.1
Joomla	Joomla\!	1.7.2
Joomla	Joomla\!	1.7.3
Joomla	Joomla\!	1.7.4
Joomla	Joomla\!	1.7.5
Joomla	Joomla\!	2.5.0
Joomla	Joomla\!	2.5.1
Joomla	Joomla\!	2.5.2
Joomla	Joomla\!	2.5.3
Joomla	Joomla\!	2.5.4
Joomla	Joomla\!	2.5.5
Joomla	Joomla\!	2.5.6
Joomla	Joomla\!	2.5.7
Joomla	Joomla\!	2.5.8
Joomla	Joomla\!	2.5.9
Joomla	Joomla\!	2.5.10

Showing 50 of 95 affected configurations. See NVD for the full list.

References

Timeline

Published: Dec 16, 2015
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2015-8562?

How severe is CVE-2015-8562?

Severity scoring for CVE-2015-8562 is pending analysis. The EPSS model estimates a 98.28% probability of exploitation in the next 30 days.

How do I fix CVE-2015-8562?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2015-8562?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST