HIGH
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
Published Dec 16, 2015
7.5
HIGHCVSS 2.0
EPSS 98.28%
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.
Affected products
No data.
OR
- 1.5.0
- 1.5.1
- 1.5.2
- 1.5.3
- 1.5.4
- 1.5.6
- 1.5.7
- 1.5.8
- 1.5.9
- 1.5.10
- 1.5.11
- 1.5.12
- 1.5.13
- 1.5.14
- 1.5.15
- 1.5.16
- 1.5.17
- 1.5.18
- 1.5.19
- 1.5.20
- 1.5.21
- 1.5.22
- 1.5.23
- 1.5.24
- 1.5.25
- 1.5.26
- 1.6.0
- 1.6.1
- 1.6.2
- 1.6.3
- 1.6.4
- 1.6.5
- 1.6.6
- 1.7.0
- 1.7.1
- 1.7.2
- 1.7.3
- 1.7.4
- 1.7.5
- 2.5.0
- 2.5.1
- 2.5.2
- 2.5.3
- 2.5.4
- 2.5.5
- 2.5.6
- 2.5.7
- 2.5.8
- 2.5.9
- 2.5.10
- 2.5.11
- 2.5.12
- 2.5.13
- 2.5.14
- 2.5.15
- 2.5.16
- 2.5.17
- 2.5.18
- 2.5.19
- 2.5.20
- 2.5.21
- 2.5.22
- 2.5.23
- 2.5.24
- 2.5.25
- 2.5.26
- 2.5.27
- 2.5.28
- 3.0.0
- 3.0.1
- 3.0.2
- 3.0.3
- 3.1.0
- 3.1.1
- 3.1.2
- 3.1.3
- 3.1.4
- 3.1.5
- 3.1.6
- 3.2.0
- 3.2.1
- 3.2.2
- 3.2.3
- 3.2.4
- 3.3.0
- 3.3.1
- 3.3.2
- 3.3.3
- 3.3.4
- 3.4.0
- 3.4.1
- 3.4.2
- 3.4.3
- 3.4.4
- 3.4.5
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
7.5 HIGH NVD
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
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
98.28% 0.98283
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.98283
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (17 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 98.28% (0.98283) | 99.91th | v5 (v2026.06.15) |
| Jun 15, 2026 | 98.28% (0.98283) | 99.91th | v5 (v2026.06.15) |
| Jul 2, 2025 | 93.07% (0.93072) | 99.78th | v4 (v2025.03.14) |
| Mar 17, 2025 | 94.19% (0.94187) | 99.91th | v4 (v2025.03.14) |
| Dec 12, 2024 | 97.14% (0.97135) | 99.84th | v3 (v2023.03.01) |
| Jul 10, 2024 | 97.25% (0.97254) | 99.86th | v3 (v2023.03.01) |
| Jan 15, 2024 | 97.31% (0.97311) | 99.86th | v3 (v2023.03.01) |
| Dec 11, 2023 | 97.27% (0.97266) | 99.82th | v3 (v2023.03.01) |
| Nov 9, 2023 | 97.19% (0.97190) | 99.77th | v3 (v2023.03.01) |
| Oct 8, 2023 | 97.26% (0.97263) | 99.79th | v3 (v2023.03.01) |
| Sep 5, 2023 | 97.24% (0.97241) | 99.76th | v3 (v2023.03.01) |
| Aug 3, 2023 | 97.29% (0.97289) | 99.78th | v3 (v2023.03.01) |
| Jun 30, 2023 | 97.34% (0.97337) | 99.81th | v3 (v2023.03.01) |
| May 28, 2023 | 97.36% (0.97358) | 99.82th | v3 (v2023.03.01) |
| Mar 7, 2023 | 97.41% (0.97405) | 99.84th | v3 (v2023.03.01) |
| Mar 6, 2023 | 93.86% (0.93861) | 99.94th | v2 (v2022.01.01) |
| Feb 4, 2022 | 93.86% (0.93861) | 99.93th | v2 (v2022.01.01) |
Weaknesses (1)
References (9)
- http://packetstormsecurity.com/files/134949/Joomla-HTTP-Header-Unauthenticated-Remote-Code-Execution.html x_refsource_MISCExploit
- http://packetstormsecurity.com/files/135100/Joomla-3.4.5-Object-Injection.html x_refsource_MISC
- http://www.rapid7.com/db/modules/exploit/multi/http/joomla_http_header_rce x_refsource_MISC
- http://www.securityfocus.com/archive/1/537219/100/0/threaded mailing-listx_refsource_BUGTRAQ
- http://www.securityfocus.com/bid/79195 vdb-entryx_refsource_BID
- https://blog.sucuri.net/2015/12/remote-command-execution-vulnerability-in-joomla.html x_refsource_MISCExploit
- https://developer.joomla.org/security-centre/630-20151214-core-remote-code-execution-vulnerability.html x_refsource_CONFIRMVendor Advisory
- https://www.exploit-db.com/exploits/38977/ exploitx_refsource_EXPLOIT-DB
- https://www.exploit-db.com/exploits/39033/ exploitx_refsource_EXPLOIT-DB
| Link | Providers | Tags |
|---|---|---|
| http://packetstormsecurity.com/files/134949/Joomla-HTTP-Header-Unauthenticated-Remote-Code-Execution.html | x_refsource_MISCExploit | |
| http://packetstormsecurity.com/files/135100/Joomla-3.4.5-Object-Injection.html | x_refsource_MISC | |
| http://www.rapid7.com/db/modules/exploit/multi/http/joomla_http_header_rce | x_refsource_MISC | |
| http://www.securityfocus.com/archive/1/537219/100/0/threaded | mailing-listx_refsource_BUGTRAQ | |
| http://www.securityfocus.com/bid/79195 | vdb-entryx_refsource_BID | |
| https://blog.sucuri.net/2015/12/remote-command-execution-vulnerability-in-joomla.html | x_refsource_MISCExploit | |
| https://developer.joomla.org/security-centre/630-20151214-core-remote-code-execution-vulnerability.html | x_refsource_CONFIRMVendor Advisory | |
| https://www.exploit-db.com/exploits/38977/ | exploitx_refsource_EXPLOIT-DB | |
| https://www.exploit-db.com/exploits/39033/ | exploitx_refsource_EXPLOIT-DB |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Dec 16, 2015
Updated Aug 6, 2024
Reserved Dec 15, 2015
Link CVE-2015-8562
CISA Vulnrichment
Updated n/a