CVE-2024-38787 in Import and export users and customers Plugin
Summary
by MITRE • 08/13/2024
Insertion of Sensitive Information Into Sent Data vulnerability in Javier Carazo Import and export users and customers import-users-from-csv-with-meta.This issue affects Import and export users and customers: from n/a through <= 1.26.8.
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Analysis
by VulDB Data Team • 04/02/2026
The vulnerability identified as CVE-2024-38787 represents a critical insertion of sensitive information into sent data flaw within the Import and export users and customers plugin for WordPress. This issue specifically impacts versions ranging from n/a through version 1.26.8, creating a significant security risk for WordPress installations that utilize this particular plugin for user management and data import operations. The vulnerability falls under the category of information exposure, where sensitive data may be inadvertently included in transmitted information, potentially compromising user privacy and system security.
The technical nature of this vulnerability stems from improper handling of sensitive data during the import process from csv files with meta information. When users attempt to import users and customer data through the csv import functionality, the plugin fails to adequately sanitize or filter sensitive information that may be present in the meta fields of the csv files. This oversight allows potentially confidential data such as passwords, authentication tokens, or other sensitive user information to be included in the data transmission process, creating an attack surface that malicious actors could exploit to gain unauthorized access to user accounts or sensitive system information. The vulnerability is particularly concerning because it occurs during legitimate administrative operations, making detection more challenging and potentially allowing attackers to remain undetected while harvesting sensitive data.
The operational impact of this vulnerability extends beyond simple data exposure, as it can lead to unauthorized access to user accounts, potential identity theft, and compromise of customer information within e-commerce environments. When administrators import user data from csv files, they typically expect the process to be secure and to only import the intended data fields. However, this vulnerability allows for the unintended inclusion of sensitive meta information that may have been inadvertently included in the csv files, such as password hashes, session tokens, or other authentication-related data. The risk is amplified when considering that many organizations use automated processes to generate csv files for user imports, potentially including additional meta information that is not properly filtered or sanitized before transmission. This vulnerability directly relates to CWE-200, which addresses the exposure of sensitive information to an unauthorized actor, and can be mapped to ATT&CK technique T1566.002 for credential access through phishing with a malicious file.
Mitigation strategies for this vulnerability should prioritize immediate plugin updates to versions that address the sensitive data handling issue, as well as implementing comprehensive data sanitization processes for csv imports. Organizations should conduct thorough audits of their existing user data to identify any potential exposure of sensitive information, particularly focusing on meta fields within csv files that may have been imported prior to the vulnerability being addressed. System administrators should implement additional monitoring for unusual data transmission patterns that may indicate the presence of sensitive information in import operations. Security teams should also consider implementing data loss prevention measures that can identify and block the transmission of sensitive information through import processes. Regular security assessments of third-party plugins should be conducted to identify similar vulnerabilities, and organizations should maintain up-to-date vulnerability management processes that include monitoring for new security advisories related to their WordPress plugins. The vulnerability highlights the critical importance of proper input validation and data sanitization in web applications, particularly in administrative functions where sensitive data handling occurs.