WordPress security changelog
MEDIUM CVE-2026-4328 Deferred

Advanced Import: Cross-site scripting

Advanced Import is affected by cross-site scripting. Exploitation requires at least author-level access. Injected script can execute in the affected site's origin when the vulnerable output is viewed. The published affected range is <= 1.4.6.

CVE / CNA score 6.4 CVSS 3.1 · security@wordfence.com
NVD score Pending NVD has not published its own CVSS assessment.
Component
Advanced Import
Plugin slug
advanced-import
Affected
<= 1.4.6
Safe version
> 1.4.6
Published
Jun 19, 2026
Weakness
CWE-918 — Server-Side Request Forgery (SSRF)

This CVE was published Jun 19, 2026 and is one of 2 known issues for this plugin.

What to do

Update, patch or deactivate.

Update Advanced Import to a release after 1.4.6, or disable and remove it until a fixed version is available.

A safe version is available, so updating to that version or later is the preferred remediation. If an immediate update is not practical, consider a targeted application patch or temporarily restricting the affected functionality.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Source record

Technical description

The Advanced Import plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 1.4.6. This is due to the plugin using wp_remote_get() to fetch a user-supplied URL without validating that the URL does not point to internal or private network resources in the demo_download_and_unzip() function. The 'demo_file' parameter from $_POST is passed through sanitize_text_field() (which only handles XSS-related sanitization) and then directly into wp_remote_get() when 'demo_file_type' is set to 'url'. Notably, the plugin uses wp_safe_remote_get() in other locations (theme template libraries) which would provide SSRF protection, but fails to use it in this critical AJAX handler. This makes it possible for authenticated attackers, with Author-level access and above (upload_files capability), to make web requests to arbitrary locations originating from the web application, which can be used to query and view data from internal services, including cloud instance metadata endpoints.

CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

References

Primary and upstream sources