WP Ultimate CSV Importer <= 7.9.8 - Authenticated (Author+) Remote Code Execution
Published Aug 4, 2023
8.8
HIGHCVSS 3.1
EPSS 1.55%
Description
The WP Ultimate CSV Importer plugin for WordPress is vulnerable to Remote Code Execution in versions up to, and including, 7.9.8 via the '->cus1' parameter. This allows authenticated attackers with author-level permissions or above, if the administrator previously grants access in the plugin settings, to execute code on the server. The author resolved this vulnerability by removing the ability for authors and editors to import files, please note that this means remote code execution is still possible for site administrators, use the plugin with caution.
Affected products
- Vendor Smackcoders Product WP Ultimate CSV Importer – Import CSV, XML & Excel into WordPress Defaultunaffected
- Version 0StatusaffectedConstraints<=7.9.8
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Smackcoders | WP Ultimate CSV Importer – Import CSV, XML & Excel into WordPress | unaffected |
|
- ≤ 7.9.8
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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
1 other source (CVE.org) ▾
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
NoTechnical Impact
TotalDecision
n/aAssessed Feb 5, 2025 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
Score over time
2023–2026- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 1.55% (0.01555) | 74.30th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.24% (0.01239) | 65.12th | v5 (v2026.06.15) |
| Apr 29, 2026 | 6.17% (0.06167) | 90.86th | v4 (v2025.03.14) |
| Nov 21, 2025 | 4.45% (0.04448) | 88.56th | v4 (v2025.03.14) |
| Nov 18, 2025 | 6.13% (0.06132) | 89.88th | v4 (v2025.03.14) |
| Mar 30, 2025 | 4.99% (0.04986) | 88.70th | v4 (v2025.03.14) |
| Mar 29, 2025 | 6.56% (0.06559) | 84.82th | v4 (v2025.03.14) |
| Mar 19, 2025 | 4.99% (0.04986) | 88.41th | v4 (v2025.03.14) |
| Mar 17, 2025 | 3.76% (0.03757) | 87.24th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.50% (0.00497) | 77.05th | v3 (v2023.03.01) |
| Jul 4, 2024 | 0.20% (0.00204) | 58.68th | v3 (v2023.03.01) |
| Jun 10, 2024 | 0.18% (0.00176) | 54.70th | v3 (v2023.03.01) |
| Aug 9, 2023 | 0.15% (0.00147) | 49.95th | v3 (v2023.03.01) |
| Aug 4, 2023 | 0.11% (0.00113) | 43.97th | v3 (v2023.03.01) |
References (3)
- https://plugins.trac.wordpress.org/browser/wp-ultimate-csv-importer/tags/7.9.6/importExtensions/ImportHelpers.php#L205 Release Notes
- https://plugins.trac.wordpress.org/changeset/2944635/wp-ultimate-csv-importer/trunk/wp-ultimate-csv-importer.php Patch
- https://www.wordfence.com/threat-intel/vulnerabilities/id/db1bad2e-55df-40c5-9a3f-651858a19b42?source=cve Third Party Advisory
Change history (0)
No recorded changes yet.