MEDIUM
Before WordPress 4.9.5, the URL validator assumed URLs with the hostname localhost were on the same host as the WordPress server
Published Apr 14, 2018
6.1
MEDIUMCVSS 3.0
EPSS 2.64%
Description
Before WordPress 4.9.5, the URL validator assumed URLs with the hostname localhost were on the same host as the WordPress server.
Affected products
No data.
Configuration 2
OR
- 8.0
- 9.0
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.
6.1 MEDIUM NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Changed
Confidentiality Impact Low
Integrity Impact Low
Availability Impact None
5.8 MEDIUM NVD
AV:N/AC:M/Au:N/C:P/I:P/A:N
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact None
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
2.64% 0.02636
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.02636
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 (47 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.64% (0.02636) | 85.02th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.26% (0.03264) | 86.73th | v5 (v2026.06.15) |
| Mar 4, 2026 | 9.39% (0.09391) | 92.64th | v4 (v2025.03.14) |
| Mar 1, 2026 | 4.88% (0.04884) | 89.43th | v4 (v2025.03.14) |
| Feb 4, 2026 | 9.39% (0.09391) | 92.59th | v4 (v2025.03.14) |
| Feb 1, 2026 | 4.88% (0.04884) | 89.36th | v4 (v2025.03.14) |
| Jan 4, 2026 | 9.39% (0.09391) | 92.52th | v4 (v2025.03.14) |
| Jan 1, 2026 | 4.88% (0.04884) | 89.31th | v4 (v2025.03.14) |
| Dec 28, 2025 | 9.39% (0.09391) | 92.51th | v4 (v2025.03.14) |
| Dec 27, 2025 | 6.98% (0.06979) | 91.18th | v4 (v2025.03.14) |
| Dec 4, 2025 | 9.39% (0.09391) | 92.48th | v4 (v2025.03.14) |
| Dec 1, 2025 | 4.88% (0.04884) | 89.23th | v4 (v2025.03.14) |
| Nov 21, 2025 | 9.39% (0.09391) | 92.46th | v4 (v2025.03.14) |
| Nov 18, 2025 | 0.65% (0.00649) | 68.44th | v4 (v2025.03.14) |
| Nov 4, 2025 | 9.39% (0.09391) | 92.43th | v4 (v2025.03.14) |
| Nov 1, 2025 | 4.88% (0.04884) | 89.13th | v4 (v2025.03.14) |
| Oct 28, 2025 | 9.39% (0.09391) | 92.42th | v4 (v2025.03.14) |
| Oct 27, 2025 | 6.98% (0.06979) | 91.05th | v4 (v2025.03.14) |
| Oct 4, 2025 | 9.39% (0.09391) | 92.47th | v4 (v2025.03.14) |
| Oct 1, 2025 | 4.88% (0.04884) | 89.17th | v4 (v2025.03.14) |
| Sep 4, 2025 | 6.98% (0.06979) | 91.10th | v4 (v2025.03.14) |
| Sep 1, 2025 | 3.57% (0.03570) | 87.35th | v4 (v2025.03.14) |
| Aug 4, 2025 | 6.98% (0.06979) | 91.05th | v4 (v2025.03.14) |
| Aug 1, 2025 | 3.57% (0.03570) | 87.39th | v4 (v2025.03.14) |
| Jul 30, 2025 | 6.98% (0.06979) | 91.05th | v4 (v2025.03.14) |
| Jul 4, 2025 | 8.45% (0.08454) | 91.90th | v4 (v2025.03.14) |
| Jul 1, 2025 | 4.37% (0.04369) | 88.52th | v4 (v2025.03.14) |
| Jun 4, 2025 | 8.45% (0.08454) | 91.86th | v4 (v2025.03.14) |
| Jun 1, 2025 | 4.37% (0.04369) | 88.44th | v4 (v2025.03.14) |
| May 4, 2025 | 8.45% (0.08454) | 91.85th | v4 (v2025.03.14) |
| May 1, 2025 | 4.37% (0.04369) | 88.36th | v4 (v2025.03.14) |
| Mar 30, 2025 | 8.45% (0.08454) | 91.52th | v4 (v2025.03.14) |
| Mar 29, 2025 | 32.04% (0.32044) | 95.02th | v4 (v2025.03.14) |
| Mar 24, 2025 | 8.45% (0.08454) | 91.53th | v4 (v2025.03.14) |
| Mar 23, 2025 | 32.04% (0.32044) | 96.29th | v4 (v2025.03.14) |
| Mar 17, 2025 | 8.45% (0.08454) | 91.71th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.51% (0.00509) | 77.35th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.51% (0.00509) | 75.88th | v3 (v2023.03.01) |
| Nov 8, 2023 | 0.51% (0.00509) | 73.83th | v3 (v2023.03.01) |
| Oct 15, 2023 | 0.65% (0.00649) | 76.98th | v3 (v2023.03.01) |
| Sep 5, 2023 | 0.92% (0.00917) | 80.91th | v3 (v2023.03.01) |
| Sep 3, 2023 | 1.00% (0.00995) | 81.70th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.03% (0.01029) | 81.54th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.18% (0.01183) | 61.76th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.18% (0.01183) | 35.15th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.86% (0.01865) | 48.06th | v5 (v2026.06.15) |
| Apr 14, 2021 | 1.86% (0.01865) | 0.00th | v1 |
Weaknesses (1)
References (8)
- http://www.securityfocus.com/bid/104350 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1040836 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- https://codex.wordpress.org/Version_4.9.5 x_refsource_CONFIRMVendor Advisory
- https://core.trac.wordpress.org/changeset/42894 x_refsource_CONFIRMPatchVendor Advisory
- https://github.com/WordPress/WordPress/commit/804363859602d4050d9a38a21f5a65d9aec18216 x_refsource_CONFIRMPatchThird Party Advisory
- https://wordpress.org/news/2018/04/wordpress-4-9-5-security-and-maintenance-release/ x_refsource_CONFIRMVendor Advisory
- https://wpvulndb.com/vulnerabilities/9053 x_refsource_MISCThird Party Advisory
- https://www.debian.org/security/2018/dsa-4193 vendor-advisoryx_refsource_DEBIANThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/104350 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| http://www.securitytracker.com/id/1040836 | vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry | |
| https://codex.wordpress.org/Version_4.9.5 | x_refsource_CONFIRMVendor Advisory | |
| https://core.trac.wordpress.org/changeset/42894 | x_refsource_CONFIRMPatchVendor Advisory | |
| https://github.com/WordPress/WordPress/commit/804363859602d4050d9a38a21f5a65d9aec18216 | x_refsource_CONFIRMPatchThird Party Advisory | |
| https://wordpress.org/news/2018/04/wordpress-4-9-5-security-and-maintenance-release/ | x_refsource_CONFIRMVendor Advisory | |
| https://wpvulndb.com/vulnerabilities/9053 | x_refsource_MISCThird Party Advisory | |
| https://www.debian.org/security/2018/dsa-4193 | vendor-advisoryx_refsource_DEBIANThird Party Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Apr 14, 2018
Updated Aug 5, 2024
Reserved Apr 14, 2018
Link CVE-2018-10101
CISA Vulnrichment
Updated n/a