CVE-2026-76558: WP Import Export Lite < 3.9.33 - Contributor+ Stored DOM XSS via Custom Field Names
The WP Import Export Lite WordPress plugin before 3.9.33 does not escape custom field names retrieved from the database before inserting them into the DOM of one of its administration screens, allowing users with a role as low as contributor to perform Stored XSS attacks which will trigger in the browser of a high privileged user, such as an administrator, viewing that screen.
Affected Software
Event History
Frequently Asked Questions
Who can exploit this issue, and who is at risk from the payload?
A user with at least the Contributor role can perform the stored XSS attack. The payload executes when a high-privileged user, such as an administrator, views the affected plugin administration screen.
What application state is required for exploitation?
The attacker must be able to cause a malicious custom field name to be stored in the database. The vulnerable administration screen must then be viewed by a high-privileged user.
Which versions are affected?
WP Import Export Lite versions before 3.9.33 are affected.