Export and Import Users and Customers <= 2.7.5 - Authenticated (Subscriber+) Privilege Escalation via CSV Escape-Character Mismatch in Export/Import Round Trip via Biographical Info Field

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-104368
StatePUBLISHED
AssignerWordfence
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-30 05:16:57 UTC
Updated2026-10-30 05:16:57 UTC
DescriptionThe Export and Import Users and Customers plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 2.7.5 via the plugin's own export and re-import workflow. The vulnerability exists because of a CSV escape-character mismatch between the exporter and the importer: class-csvwriter.php writes cells with fputcsv() using PHP's default backslash (\) escape character, while class-csvreader.php parses the same file with fgetcsv() using a double-quote (") as the escape character. As a result, a crafted value stored in a Subscriber's Biographical Info field — containing a backslash-quote sequence followed by a newline — is written as a single quoted CSV field but parsed back as two separate rows on import. The injected second row is then processed by hf_create_customer() as a new user record whose user_login, user_pass, user_email, and role are entirely attacker-controlled, allowing the creation of an arbitrary Administrator account. This makes it possible for authenticated attackers with Subscriber-level access and above to escalate their privileges to Administrator.

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-116 | CWE-116 CWE-116 Improper Encoding or Escaping of Output

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 Webtoffee Export And Import Users And Customers affected 2.7.5 semver Not specified

References

ReferenceSourceLinkTags
plugins.trac.wordpress.org/browser/users-customers-import-export-for-wp-woocommerce/tags... [email protected] plugins.trac.wordpress.org
www.wordfence.com/threat-intel/vulnerabilities/id/4d358e43-f193-42fd-b49a-1b2a9... [email protected] www.wordfence.com
plugins.trac.wordpress.org/browser/users-customers-import-export-for-wp-woocommerce/tags... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/changeset/3741112/users-customers-import-export-for-wp-woocom... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/users-customers-import-export-for-wp-woocommerce/tags... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/users-customers-import-export-for-wp-woocommerce/tags... [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: Sebastian Albrecht (mySebbe) (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-10-01T22:04:02.000ZVendor Notified
CNA2026-10-29T16:03:50.000ZDisclosed

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