WP Ultimate CSV Importer <= 8.0.1 - Missing Authorization to Authenticated (Subscriber+) Remote Code Execution via 'MappedFields' Parameter

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Summary

CVECVE-2026-13353
StatePUBLISHED
AssignerWordfence
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-07-11 04:17:16 UTC
Updated2026-07-11 04:17:16 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v3.1 8.8 HIGH from [email protected]

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Problem Types: CWE-94 | CWE-94 CWE-94 Improper Control of Generation of Code ('Code Injection')

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary8.8HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
3.1CNADECLARED8.8HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Smackcoders WP Ultimate CSV Importer WordPress Import Export For CSV XML Excel affected 8.0.1 semver Not specified

References

ReferenceSourceLinkTags
plugins.trac.wordpress.org/browser/wp-ultimate-csv-importer/tags/8.0.1/InstallAddons.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/changeset/3591135/wp-ultimate-csv-importer [email protected] plugins.trac.wordpress.org
www.wordfence.com/threat-intel/vulnerabilities/id/e89fc348-1146-4593-8bf5-127f7... [email protected] www.wordfence.com
plugins.trac.wordpress.org/browser/wp-ultimate-csv-importer/tags/8.0.1/SaveMapping.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/wp-ultimate-csv-importer/tags/8.0.1/SaveMapping.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/wp-ultimate-csv-importer/tags/8.0.1/wp-ultimate-csv-i... [email protected] plugins.trac.wordpress.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: daroo (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-06-25T16:50:42.000ZVendor Notified
CNA2026-07-10T13:43:13.000ZDisclosed
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