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CVE-2026-13353— WP Ultimate CSV Importer <= 8.0.1 - Missing Authorization to Authenticated (Subscriber+) Remote Code Execution via 'MappedFields' Parameter

Quick assessment

Affected
smackcoders WP Ultimate CSV Importer – WordPress Import & Export for CSV, XML & Excel
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WordPress WP Ultimate CSV Importer是WordPress基金会的一款CSV导入工具。 WordPress WP Ultimate CSV Importer 8.0.1及之前版本存在代码注入漏洞，该漏洞源于通过MappedFields参数缺失能力检查，导致远程代码执行。

CVSS 8.8 · High EPSS 1.11% · P65

Affected Version Matrix 1

VendorProduct Version RangeStatus
smackcoders WP Ultimate CSV Importer – WordPress Import & Export for CSV, XML & Excel ≤ 8.0.1 affected
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I. Basic Information for CVE-2026-13353

Vulnerability Information
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Vulnerability Title
WP Ultimate CSV Importer <= 8.0.1 - Missing Authorization to Authenticated (Subscriber+) Remote Code Execution via 'MappedFields' Parameter
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对生成代码的控制不恰当(代码注入)
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress WP Ultimate CSV Importer 代码注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress WP Ultimate CSV Importer是WordPress基金会的一款CSV导入工具。 WordPress WP Ultimate CSV Importer 8.0.1及之前版本存在代码注入漏洞，该漏洞源于通过MappedFields参数缺失能力检查，导致远程代码执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
smackcoders WP Ultimate CSV Importer – WordPress Import & Export for CSV, XML & Excel 0 ~ 8.0.1 -

II. Public POCs for CVE-2026-13353

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III. Intelligence Information for CVE-2026-13353

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Patches & Fixes for CVE-2026-13353 (2)

News Coverage for CVE-2026-13353 (1)

IV. Related Vulnerabilities

Same vendor: smackcoders
Same weakness: CWE-94

V. Comments for CVE-2026-13353

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