HIGH
WordPress before 5.2.4 is vulnerable to poisoning of the cache of JSON GET requests because certain requests lack a Vary: Origin header
Published Oct 17, 2019
7.5
HIGHCVSS 3.1
EPSS 3.15%
Description
WordPress before 5.2.4 is vulnerable to poisoning of the cache of JSON GET requests because certain requests lack a Vary: Origin header.
Affected products
No data.
Configuration 2
OR
- 9.0
- 10.0
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.
7.5 HIGH NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact High
Availability Impact None
No CVSS v3.0 score for this CVE.
5.0 MEDIUM NVD
AV:N/AC:L/Au:N/C:N/I:P/A:N
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact Partial
Availability Impact None
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
3.15% 0.03154
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
EPSS probability 0.03154
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (43 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 3.15% (0.03154) | 87.52th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.15% (0.03154) | 86.24th | v5 (v2026.06.15) |
| Dec 28, 2025 | 3.57% (0.03574) | 87.37th | v4 (v2025.03.14) |
| Dec 27, 2025 | 2.33% (0.02328) | 84.45th | v4 (v2025.03.14) |
| Dec 8, 2025 | 3.57% (0.03574) | 87.31th | v4 (v2025.03.14) |
| Dec 4, 2025 | 5.46% (0.05455) | 89.82th | v4 (v2025.03.14) |
| Dec 1, 2025 | 3.97% (0.03966) | 88.01th | v4 (v2025.03.14) |
| Nov 21, 2025 | 5.46% (0.05455) | 89.75th | v4 (v2025.03.14) |
| Nov 18, 2025 | 2.61% (0.02611) | 84.33th | v4 (v2025.03.14) |
| Nov 4, 2025 | 5.46% (0.05455) | 89.73th | v4 (v2025.03.14) |
| Nov 1, 2025 | 3.97% (0.03966) | 87.93th | v4 (v2025.03.14) |
| Oct 28, 2025 | 5.46% (0.05455) | 89.72th | v4 (v2025.03.14) |
| Oct 27, 2025 | 3.59% (0.03586) | 87.27th | v4 (v2025.03.14) |
| Oct 4, 2025 | 5.46% (0.05455) | 89.75th | v4 (v2025.03.14) |
| Jul 30, 2025 | 3.59% (0.03586) | 87.32th | v4 (v2025.03.14) |
| Jul 4, 2025 | 4.88% (0.04884) | 89.11th | v4 (v2025.03.14) |
| Jul 1, 2025 | 3.54% (0.03543) | 87.24th | v4 (v2025.03.14) |
| Jun 4, 2025 | 4.88% (0.04884) | 89.05th | v4 (v2025.03.14) |
| Jun 1, 2025 | 3.54% (0.03543) | 87.17th | v4 (v2025.03.14) |
| May 4, 2025 | 4.88% (0.04884) | 88.97th | v4 (v2025.03.14) |
| May 1, 2025 | 3.54% (0.03543) | 87.08th | v4 (v2025.03.14) |
| Apr 10, 2025 | 4.88% (0.04884) | 88.63th | v4 (v2025.03.14) |
| Apr 7, 2025 | 6.54% (0.06536) | 90.25th | v4 (v2025.03.14) |
| Mar 30, 2025 | 8.67% (0.08665) | 91.63th | v4 (v2025.03.14) |
| Mar 29, 2025 | 56.85% (0.56850) | 97.29th | v4 (v2025.03.14) |
| Mar 24, 2025 | 8.67% (0.08665) | 91.64th | v4 (v2025.03.14) |
| Mar 23, 2025 | 34.43% (0.34433) | 96.51th | v4 (v2025.03.14) |
| Mar 17, 2025 | 8.67% (0.08665) | 91.81th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.83% (0.00833) | 82.72th | v3 (v2023.03.01) |
| Feb 10, 2024 | 0.42% (0.00417) | 73.43th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.42% (0.00423) | 73.58th | v3 (v2023.03.01) |
| Sep 23, 2023 | 0.42% (0.00423) | 71.22th | v3 (v2023.03.01) |
| Sep 7, 2023 | 0.37% (0.00370) | 69.19th | v3 (v2023.03.01) |
| Aug 21, 2023 | 0.27% (0.00272) | 63.74th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.28% (0.00280) | 63.41th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.18% (0.01183) | 61.76th | v2 (v2022.01.01) |
| Oct 19, 2022 | 1.18% (0.01183) | 60.79th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.18% (0.01183) | 58.77th | v2 (v2022.01.01) |
| Feb 4, 2022 | 19.17% (0.19173) | 93.71th | v2 (v2022.01.01) |
| Feb 3, 2022 | 7.85% (0.07855) | 85.01th | v1 |
| Jan 6, 2022 | 7.85% (0.07855) | 84.84th | v1 |
| Sep 1, 2021 | 1.86% (0.01865) | 76.13th | v1 |
| Apr 14, 2021 | 1.86% (0.01865) | 0.00th | v1 |
Weaknesses (0)
No CWE recorded.
References (8)
- https://blog.wpscan.org/wordpress/security/release/2019/10/15/wordpress-524-security-release-breakdown.html x_refsource_MISCThird Party Advisory
- https://core.trac.wordpress.org/changeset/46478 x_refsource_MISCPatchVendor Advisory
- https://github.com/WordPress/WordPress/commit/b224c251adfa16a5f84074a3c0886270c9df38de x_refsource_MISCPatchThird Party Advisory
- https://seclists.org/bugtraq/2020/Jan/8 mailing-listx_refsource_BUGTRAQMailing ListThird Party Advisory
- https://wordpress.org/news/2019/10/wordpress-5-2-4-security-release/ x_refsource_MISCRelease NotesVendor Advisory
- https://wpvulndb.com/vulnerabilities/9911 x_refsource_MISCThird Party Advisory
- https://www.debian.org/security/2020/dsa-4599 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- https://www.debian.org/security/2020/dsa-4677 vendor-advisoryx_refsource_DEBIANThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://blog.wpscan.org/wordpress/security/release/2019/10/15/wordpress-524-security-release-breakdown.html | x_refsource_MISCThird Party Advisory | |
| https://core.trac.wordpress.org/changeset/46478 | x_refsource_MISCPatchVendor Advisory | |
| https://github.com/WordPress/WordPress/commit/b224c251adfa16a5f84074a3c0886270c9df38de | x_refsource_MISCPatchThird Party Advisory | |
| https://seclists.org/bugtraq/2020/Jan/8 | mailing-listx_refsource_BUGTRAQMailing ListThird Party Advisory | |
| https://wordpress.org/news/2019/10/wordpress-5-2-4-security-release/ | x_refsource_MISCRelease NotesVendor Advisory | |
| https://wpvulndb.com/vulnerabilities/9911 | x_refsource_MISCThird Party Advisory | |
| https://www.debian.org/security/2020/dsa-4599 | vendor-advisoryx_refsource_DEBIANThird Party Advisory | |
| https://www.debian.org/security/2020/dsa-4677 | vendor-advisoryx_refsource_DEBIANThird Party Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Oct 17, 2019
Updated Aug 5, 2024
Reserved Oct 17, 2019
Link CVE-2019-17673
CISA Vulnrichment
Updated n/a