CVE-2015-8562

highpriority · attend · 74EPSS 0.982 · 100 %ileexploit · weaponizedEUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

14 exploits · weaponized

Likely / severe?

98.2% (100th) EPSS

CVSS 7.5 · high

Is it mine?

96 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-28

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.

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.07.5highAV:N/AC:L/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 10 · impact 6.4

v2.07.5highAV:N/AC:L/Au:N/C:P/I:P/A:P/E:Hsecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-20USprimary

exploits (14)

Public proof-of-concept and weaponised exploit code.

exploit/multi/http/joomla_http_header_rceJoomla HTTP Header Unauthenticated Remote Code Executionweaponized · metasploit
EDB-38977Joomla! 1.5 < 3.4.5 - Object Injection Remote Command Executionfunctional · exploit_db
EDB-39033Joomla! 1.5 < 3.4.6 - Object Injection 'x-forwarded-for' Header Remote Code ExecutionPoC · exploit_db
Caihuar/Joomla-cve-2015-8562Caihuar/Joomla-cve-2015-8562PoC · poc_in_github
RobinHoutevelts/Joomla-CVE-2015-8562-PHP-POCA proof of concept for Joomla's CVE-2015-8562 vulnerabilityPoC · poc_in_github
VoidSec/Joomla_CVE-2015-8562A proof of concept for Joomla's CVE-2015-8562 vulnerability (Object Injection RCE)PoC · poc_in_github

affected products (96)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
joomla joomla!= 1.5.0nvdUScpe:2.3:a:joomla:joomla\!:*:*:*:*:*:*:*:*
joomla joomla!= 1.5.1nvdUScpe:2.3:a:joomla:joomla\!:*:*:*:*:*:*:*:*
joomla joomla!= 1.5.10nvdUScpe:2.3:a:joomla:joomla\!:*:*:*:*:*:*:*:*
joomla joomla!= 1.5.11nvdUScpe:2.3:a:joomla:joomla\!:*:*:*:*:*:*:*:*
joomla joomla!= 1.5.12nvdUScpe:2.3:a:joomla:joomla\!:*:*:*:*:*:*:*:*
joomla joomla!= 1.5.13nvdUScpe:2.3:a:joomla:joomla\!:*:*:*:*:*:*:*:*
joomla joomla!= 1.5.14nvdUScpe:2.3:a:joomla:joomla\!:*:*:*:*:*:*:*:*
joomla joomla!= 1.5.15nvdUScpe:2.3:a:joomla:joomla\!:*:*:*:*:*:*:*:*
joomla joomla!= 1.5.16nvdUScpe:2.3:a:joomla:joomla\!:*:*:*:*:*:*:*:*
joomla joomla!= 1.5.17nvdUScpe:2.3:a:joomla:joomla\!:*:*:*:*:*:*:*:*
joomla joomla!= 1.5.18nvdUScpe:2.3:a:joomla:joomla\!:*:*:*:*:*:*:*:*
joomla joomla!= 1.5.19nvdUScpe:2.3:a:joomla:joomla\!:*:*:*:*:*:*:*:*
joomla joomla!= 1.5.2nvdUScpe:2.3:a:joomla:joomla\!:*:*:*:*:*:*:*:*
joomla joomla!= 1.5.20nvdUScpe:2.3:a:joomla:joomla\!:*:*:*:*:*:*:*:*
joomla joomla!= 1.5.21nvdUScpe:2.3:a:joomla:joomla\!:*:*:*:*:*:*:*:*
joomla joomla!= 1.5.22nvdUScpe:2.3:a:joomla:joomla\!:*:*:*:*:*:*:*:*
joomla joomla!= 1.5.23nvdUScpe:2.3:a:joomla:joomla\!:*:*:*:*:*:*:*:*
joomla joomla!= 1.5.24nvdUScpe:2.3:a:joomla:joomla\!:*:*:*:*:*:*:*:*
joomla joomla!= 1.5.25nvdUScpe:2.3:a:joomla:joomla\!:*:*:*:*:*:*:*:*

showing 20 of 96

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2015-12-16modified 2026-06-17

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+25198 more

references (21)

External citations — patches, advisories, analysis.

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