Reported vulnerability

WP Ultimate CSV Importer <= 7.9.8 - Authenticated (Author+) PHP File Creation to Remote Code Execution

Published 3 Aug 2023

Updated 22 Jan 2024

CVE-2023-4141

Compare your installed software with the affected versions below. Follow the source’s remediation guidance and test an available update after taking a backup. A database entry describes a reported issue; it does not establish whether a particular website has been compromised.

Does this affect my version?

Check your installed version against this advisory. This compares the report’s version ranges and does not scan your website.

Wordfence advisory

high · CVSS 8

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 '->cus2' parameter. This allows authenticated attackers with author-level permissions or above, if the administrator previously grants access in the plugin settings, to create a PHP file and 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 php file creation is still allowed for site administrators, use the plugin with caution.

Severity vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

WP Ultimate CSV Importer – WordPress CSV, XML & Excel Import Export

Software: plugin · wp-ultimate-csv-importer
Affected versions: Start version unspecified, through 7.9.8
Fix availability: Fix available
Fixed versions: 7.9.9

Recommended action

Update to version 7.9.9, or a newer patched version

Further references (1)

wordfence.com/threat-intel/vulnerabilities/id/b4fe8b1f-da1c-4f94-9ab4-272766b488c3?source=api-prod

Data sources and licences

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CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE®). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy.

Read licence terms

Source: Wordfence

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Questions about this vulnerability

Which versions of WP Ultimate CSV Importer – WordPress CSV, XML & Excel Import Export are affected?

Wordfence lists these affected versions: Start version unspecified, through 7.9.8. Use the version checker above to compare your installed release with this report.

Is a fix available for WP Ultimate CSV Importer – WordPress CSV, XML & Excel Import Export?

Wordfence reports a fix for this issue in WP Ultimate CSV Importer – WordPress CSV, XML & Excel Import Export. It lists these fixed versions: 7.9.9. Back up your website and test the recommended update before applying it to your live site.

Where can I find my installed plugin version?

In WordPress, open Plugins > Installed Plugins and find the version shown beneath the plugin name.

Does an affected version mean my website has been hacked?

An affected version means the installed release matches a vulnerability described in this report. It does not show whether anyone has exploited it on your website. The checker compares version numbers with stored reports; it does not inspect your website.

These reports cover at least one of the same plugins, themes or WordPress core. Check each report’s affected versions separately.

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