In WordPress 4.9.7, plugins uploaded via the admin area are not verified as being ZIP files
Published Aug 10, 2018
7.2
HIGHCVSS 3.0
EPSS 15.35%
Description
In WordPress 4.9.7, plugins uploaded via the admin area are not verified as being ZIP files. This allows for PHP files to be uploaded. Once a PHP file is uploaded, the plugin extraction fails, but the PHP file remains in a predictable wp-content/uploads location, allowing for an attacker to then execute the file. This represents a security risk in limited scenarios where an attacker (who does have the required capabilities for plugin uploads) cannot simply place arbitrary PHP code into a valid plugin ZIP file and upload that plugin, because a machine's wp-content/plugins directory permissions were set up to block all new plugins.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
AV:N/AC:L/Au:S/C:P/I:P/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
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 (37 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 15.35% (0.15354) | 96.68th | v5 (v2026.06.15) |
| Sep 22, 2026 | 15.23% (0.15233) | 96.60th | v5 (v2026.06.15) |
| Sep 21, 2026 | 12.57% (0.12570) | 96.11th | v5 (v2026.06.15) |
| Sep 20, 2026 | 15.23% (0.15233) | 96.60th | v5 (v2026.06.15) |
| Sep 6, 2026 | 15.35% (0.15354) | 96.55th | v5 (v2026.06.15) |
| Sep 5, 2026 | 12.67% (0.12671) | 96.05th | v5 (v2026.06.15) |
| Aug 30, 2026 | 15.35% (0.15354) | 96.53th | v5 (v2026.06.15) |
| Aug 28, 2026 | 12.67% (0.12671) | 96.03th | v5 (v2026.06.15) |
| Aug 24, 2026 | 15.35% (0.15354) | 96.51th | v5 (v2026.06.15) |
| Aug 23, 2026 | 12.67% (0.12671) | 96.02th | v5 (v2026.06.15) |
| Aug 2, 2026 | 15.35% (0.15354) | 96.44th | v5 (v2026.06.15) |
| Jun 15, 2026 | 17.72% (0.17722) | 96.77th | v5 (v2026.06.15) |
| Nov 21, 2025 | 2.51% (0.02507) | 84.84th | v4 (v2025.03.14) |
| Nov 18, 2025 | 8.13% (0.08126) | 91.29th | v4 (v2025.03.14) |
| Sep 3, 2025 | 2.11% (0.02112) | 83.50th | v4 (v2025.03.14) |
| Mar 30, 2025 | 4.95% (0.04954) | 88.66th | v4 (v2025.03.14) |
| Mar 29, 2025 | 56.54% (0.56544) | 97.27th | v4 (v2025.03.14) |
| Mar 24, 2025 | 4.95% (0.04954) | 88.65th | v4 (v2025.03.14) |
| Mar 23, 2025 | 27.81% (0.27811) | 95.86th | v4 (v2025.03.14) |
| Mar 17, 2025 | 5.57% (0.05566) | 89.59th | v4 (v2025.03.14) |
| Dec 17, 2024 | 10.85% (0.10847) | 95.08th | v3 (v2023.03.01) |
| Aug 25, 2024 | 19.29% (0.19294) | 96.37th | v3 (v2023.03.01) |
| Jul 20, 2024 | 24.98% (0.24984) | 96.72th | v3 (v2023.03.01) |
| Jan 1, 2024 | 31.60% (0.31598) | 96.56th | v3 (v2023.03.01) |
| Nov 19, 2023 | 33.05% (0.33053) | 96.61th | v3 (v2023.03.01) |
| Sep 27, 2023 | 40.49% (0.40491) | 96.82th | v3 (v2023.03.01) |
| Sep 8, 2023 | 48.24% (0.48236) | 97.02th | v3 (v2023.03.01) |
| Aug 4, 2023 | 55.71% (0.55712) | 97.18th | v3 (v2023.03.01) |
| Mar 7, 2023 | 63.28% (0.63283) | 97.23th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.95% (0.00950) | 32.28th | v2 (v2022.01.01) |
| Sep 10, 2022 | 0.95% (0.00950) | 30.63th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.95% (0.00950) | 28.61th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.95% (0.00950) | 13.46th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.04% (0.01040) | 28.32th | v1 |
| Jan 6, 2022 | 1.04% (0.01040) | 27.69th | v1 |
| Sep 1, 2021 | 1.04% (0.01040) | 64.49th | v1 |
| Apr 14, 2021 | 1.04% (0.01040) | 0.00th | v1 |
References (4)
- http://www.securityfocus.com/bid/105060 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://core.trac.wordpress.org/ticket/44710 x_refsource_MISCThird Party Advisory
- https://github.com/rastating/wordpress-exploit-framework/pull/52 x_refsource_MISCThird Party Advisory
- https://rastating.github.io/unrestricted-file-upload-via-plugin-uploader-in-wordpress/ x_refsource_MISCThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/105060 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://core.trac.wordpress.org/ticket/44710 | x_refsource_MISCThird Party Advisory | |
| https://github.com/rastating/wordpress-exploit-framework/pull/52 | x_refsource_MISCThird Party Advisory | |
| https://rastating.github.io/unrestricted-file-upload-via-plugin-uploader-in-wordpress/ | x_refsource_MISCThird Party Advisory |
Change history (0)
No recorded changes yet.