HIGH
The CMS installer in Joomla! before 3.7.4 does not verify a user's ownership of a webspace, which allows remote authenticated users to gain control of the target application by leveraging Certificate Transparency logs
Published Aug 2, 2017
8.8
HIGHCVSS 3.0
EPSS 2.18%
Description
The CMS installer in Joomla! before 3.7.4 does not verify a user's ownership of a webspace, which allows remote authenticated users to gain control of the target application by leveraging Certificate Transparency logs.
Affected products
No data.
OR
- 1.0.0
- 1.0.1
- 1.0.2
- 1.0.3
- 1.0.4
- 1.0.5
- 1.0.6
- 1.0.7
- 1.0.8
- 1.0.9
- 1.0.10
- 1.0.11
- 1.0.12
- 1.0.13
- 1.0.14
- 1.0.15
- 1.5.0
- 1.5.1
- 1.5.2
- 1.5.3
- 1.5.4
- 1.5.5
- 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
- 1.5.15
- 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
- 1.6
- 1.6
- 1.6
- 1.6
- 1.6
- 1.6
- 1.6
- 1.6
- 1.6
- 1.6
- 1.6
- 1.6
- 1.6
- 1.6
- 1.6
- 1.6
- 1.6
- 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
- 3.0.4
- 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
- 3.2.5
- 3.2.6
- 3.2.7
- 3.3.0
- 3.3.1
- 3.3.2
- 3.3.3
- 3.3.4
- 3.3.5
- 3.3.6
- 3.4.0
- 3.4.0
- 3.4.0
- 3.4.0
- 3.4.0
- 3.4.0
- 3.4.1
- 3.4.1
- 3.4.1
- 3.4.2
- 3.4.3
- 3.4.4
- 3.4.5
- 3.4.6
- 3.4.7
- 3.4.8
- 3.4.8
- 3.5.0
- 3.5.0
- 3.5.0
- 3.5.0
- 3.5.0
- 3.5.0
- 3.5.0
- 3.5.0
- 3.5.0
- 3.5.0
- 3.5.1
- 3.5.1
- 3.6.0
- 3.6.0
- 3.6.0
- 3.6.0
- 3.6.0
- 3.6.0
- 3.6.1
- 3.6.1
- 3.6.1
- 3.6.2
- 3.6.3
- 3.6.3
- 3.6.3
- 3.6.3
- 3.6.4
- 3.6.5
- 3.7.0
- 3.7.1
- 3.7.2
- 3.7.3
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.
8.8 HIGH NVD
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
6.5 MEDIUM NVD
AV:N/AC:L/Au:S/C:P/I:P/A:P
Access Vector Network
Access Complexity Low
Authentication Single
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.
2.18% 0.02182
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.02182
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.18% (0.02182) | 81.72th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.18% (0.02182) | 79.96th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.09% (0.00092) | 23.94th | v4 (v2025.03.14) |
| Jul 20, 2024 | 0.46% (0.00463) | 75.67th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.46% (0.00463) | 74.67th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.46% (0.00463) | 71.53th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.13% (0.01132) | 56.11th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.13% (0.01132) | 30.65th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.39% (0.01386) | 32.11th | v5 (v2026.06.15) |
| Apr 14, 2021 | 1.39% (0.01386) | 0.00th | v1 |
Weaknesses (1)
References (4)
- http://www.securitytracker.com/id/1039015 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- https://developer.joomla.org/security-centre/700-20170704-core-installer-lack-of-ownership-verification.html x_refsource_CONFIRMVendor Advisory
- https://media.defcon.org/DEF%20CON%2025/DEF%20CON%2025%20presentations/DEFCON-25-Hanno-Boeck-Abusing-Certificate-Transparency-Logs.pdf x_refsource_MISCThird Party Advisory
- https://twitter.com/hanno/status/890281330906247168 x_refsource_MISCThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.securitytracker.com/id/1039015 | vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry | |
| https://developer.joomla.org/security-centre/700-20170704-core-installer-lack-of-ownership-verification.html | x_refsource_CONFIRMVendor Advisory | |
| https://media.defcon.org/DEF%20CON%2025/DEF%20CON%2025%20presentations/DEFCON-25-Hanno-Boeck-Abusing-Certificate-Transparency-Logs.pdf | x_refsource_MISCThird Party Advisory | |
| https://twitter.com/hanno/status/890281330906247168 | x_refsource_MISCThird Party Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Aug 2, 2017
Updated Aug 5, 2024
Reserved Jul 17, 2017
Link CVE-2017-11364
CISA Vulnrichment
Updated n/a