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CVE-2023-4140
WP Ultimate CSV Importer <= 7.9.8 - Arbitrary Usermeta Update to Authenticated (Author+) Privilege Escalation
Medium6.6EPSS 0.79%
- Published
- Updated
- Reserved
- Assigned by
- Wordfence
Description
The WP Ultimate CSV Importer plugin for WordPress is vulnerable to privilege escalation in versions up to, and including, 7.9.8 due to insufficient restriction on the 'get_header_values' function. This makes it possible for authenticated attackers, with minimal permissions such as an author, if the administrator previously grants access in the plugin settings, to modify their user role by supplying the 'wp_capabilities->cus1' parameter.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| WordfenceCNA (assigner) | 3.1 | Medium6.6 | CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Modified | 3.1 | High8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.79% · top 44% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.6.
Weakness
Affected products
smackcoders · WP Ultimate CSV Importer – Import CSV, XML & Excel into WordPress
- affected ≤ 7.9.8
References (3)
- https://www.wordfence.com/threat-intel/vulnerabilities/id/5fdba41f-daa5-44e8-bc47-aa8b7bd31054?source=cve (opens in a new tab)x_transferred
- https://plugins.trac.wordpress.org/browser/wp-ultimate-csv-importer/tags/7.9.6/importExtensions/ImportHelpers.php#L205 (opens in a new tab)x_transferred
- https://plugins.trac.wordpress.org/changeset/2944635/wp-ultimate-csv-importer/trunk/wp-ultimate-csv-importer.php (opens in a new tab)x_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2023-4140)Record last updated .