Import and export users and customers <= 2.0.8 - Authenticated (Subscriber+) Privilege Escalation via Multisite Capability Meta Fields

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Summary

CVECVE-2026-7641
StatePUBLISHED
AssignerWordfence
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-02 05:16:01 UTC
Updated2026-05-02 05:16:01 UTC
DescriptionThe Import and export users and customers plugin for WordPress is vulnerable to Privilege Escalation in all versions up to and including 2.0.8 via the `save_extra_user_profile_fields()` function. This is due to an incomplete blocklist that correctly restricts capability meta keys for the primary site (e.g., `wp_capabilities`, `wp_user_level`) but fails to block the equivalent meta keys for any other subsite in a WordPress Multisite network (e.g., `wp_2_capabilities`, `wp_2_user_level`), allowing these keys to pass the `in_array()` check and be written directly to user meta via `update_user_meta()`. This makes it possible for authenticated attackers, with Subscriber-level access and above, to escalate their privileges to Administrator on any subsite within the Multisite network by submitting a crafted profile update to `/wp-admin/profile.php`. Exploitation requires that an administrator has previously imported a CSV file containing multisite-prefixed capability column headers and has enabled the 'Show fields in profile?' option, which causes those keys to be stored in the `acui_columns` option and exposed as editable fields on the user profile page.

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-269 | CWE-269 CWE-269 Improper Privilege Management

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 Carazo Import And Export Users And Customers affected 2.0.8 semver Not specified

References

ReferenceSourceLinkTags
plugins.trac.wordpress.org/browser/import-users-from-csv-with-meta/trunk/classes/columns... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/import-users-from-csv-with-meta/tags/2.0.6/classes/co... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/import-users-from-csv-with-meta/tags/2.0.8/classes/co... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/import-users-from-csv-with-meta/trunk/classes/multisi... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/import-users-from-csv-with-meta/tags/2.0.8/classes/he... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/import-users-from-csv-with-meta/trunk/classes/columns... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/import-users-from-csv-with-meta/tags/2.0.6/classes/he... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/changeset/3515646 [email protected] plugins.trac.wordpress.org
www.wordfence.com/threat-intel/vulnerabilities/id/368cff00-6a86-443e-aec4-4115a... [email protected] www.wordfence.com
plugins.trac.wordpress.org/browser/import-users-from-csv-with-meta/trunk/classes/helper.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/import-users-from-csv-with-meta/tags/2.0.6/classes/mu... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/import-users-from-csv-with-meta/tags/2.0.6/classes/co... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/import-users-from-csv-with-meta/tags/2.0.8/classes/mu... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/import-users-from-csv-with-meta/tags/2.0.8/classes/co... [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: Di Nhau (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-04-25T18:36:36.000ZVendor Notified
CNA2026-05-01T16:14:05.000ZDisclosed
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