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Vulnerability record · CVE-2026-3629 · published 21 March 2026

CVE-2026-3629: Improper privilege management vulnerability

The Import and export users and customers plugin for WordPress is vulnerable to privilege escalation in all versions up to, and including, 1.29.7. This is due to the 'save_extra_user_profile_fields' function not properly restricting which user meta keys can be updated via profile fields. The 'get_restricted_fields' method does not include sensitive meta keys such as 'wp_capabilities'. This makes it possible for unauthenticated attackers to escalate their privileges to Administrator by submitting a crafted registration request that sets the 'wp_capabilities' meta key. The vulnerability can only be exploited if the "Show fields in profile" setting is enabled and a CSV with a wp_capabilities column header has been previously imported.

8.1 CVSS 3.1 High EPSS 0.54% · top 56.8% CWE-269 · Improper privilege management Deferred
8.1CVSS 3.1 base score
0.54%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
5References
17 Jun 2026Last modified by NVD

Description

The Import and export users and customers plugin for WordPress is vulnerable to privilege escalation in all versions up to, and including, 1.29.7. This is due to the 'save_extra_user_profile_fields' function not properly restricting which user meta keys can be updated via profile fields. The 'get_restricted_fields' method does not include sensitive meta keys such as 'wp_capabilities'. This makes it possible for unauthenticated attackers to escalate their privileges to Administrator by submitting a crafted registration request that sets the 'wp_capabilities' meta key. The vulnerability can only be exploited if the "Show fields in profile" setting is enabled and a CSV with a wp_capabilities column header has been previously imported.

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

References

LinkTags
https://plugins.trac.wordpress.org/browser/import-users-from-csv-with-meta/tags/1.29.7/classes/columns.php#L193
https://plugins.trac.wordpress.org/browser/import-users-from-csv-with-meta/tags/1.29.7/classes/columns.php#L217
https://plugins.trac.wordpress.org/browser/import-users-from-csv-with-meta/tags/1.29.7/classes/helper.php#L146
https://plugins.trac.wordpress.org/changeset/3483330/import-users-from-csv-with-meta#file37
https://www.wordfence.com/threat-intel/vulnerabilities/id/48dd9098-38e6-49da-8d22-27e12fddef51?source=cve

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Source: NIST National Vulnerability Database (record CVE-2026-3629), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.