CVE-2026-13353 json
WP Ultimate CSV Importer <= 8.0.1 - Missing Authorization to Authenticated (Subscriber+) Remote Code Execution via 'MappedFields' Parameter
published 2026-07-11 3 mo ago modified 2026-07-13 3 mo ago also EUVD-2026-43129
- cvss
- 8.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.1%
- EPSS 1.1% chance of exploitation in 30 days, percentile 66%
- public exploits
- 0
- none known
Summary
The WP Ultimate CSV Importer – WordPress Import & Export for CSV, XML & Excel plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 8.0.1 via the 'MappedFields' parameter. This is due to missing capability checks on the AJAX handlers for install_addon, saveMappedFields, and StartImport, combined with the plugin nonce being exposed to any authenticated user who can load an admin page, allowing a Subscriber to install the Import WooCommerce add-on, persist attacker-controlled PHP expressions in the MappedFields parameter, and trigger evaluation via eval() in ImportHelpers::get_meta_values(). This makes it possible for authenticated attackers, with subscriber-level access and above, to execute code on the server.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 3 mo ago
Exploit prediction
1.11% chance of exploitation in the next 30 days, higher than 66% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected products
- smackcoders WP Ultimate CSV Importer – WordPress Import & Export for CSV, XML & Excel
Classification
- Weakness
-
- CWE-94 Improper Control of Generation of Code
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/e89fc348-1146-4593-8bf5-127f783ab786?source=cve
- plugins.trac.wordpress.org /browser/wp-ultimate-csv-importer/tags/8.0.1/wp-ultimate-csv-importer.php#L419
- plugins.trac.wordpress.org /browser/wp-ultimate-csv-importer/tags/8.0.1/InstallAddons.php#L66
- plugins.trac.wordpress.org /browser/wp-ultimate-csv-importer/tags/8.0.1/SaveMapping.php#L185
- plugins.trac.wordpress.org /browser/wp-ultimate-csv-importer/tags/8.0.1/SaveMapping.php#L1562
- plugins.trac.wordpress.org /changeset/3591135/wp-ultimate-csv-importer
Sources
- CVE List CVE-2026-13353
- NVD CVE-2026-13353
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.