CVE-2026-4328 json
Advanced Import: One-Click Demo Import for WordPress <= 1.4.6 - Authenticated (Author+) Server-Side Request Forgery via 'demo_file' Parameter
published 2026-06-19 4 mo ago modified 2026-06-22 4 mo ago also EUVD-2026-37984
- cvss
- 6.4
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 27%
- public exploits
- 0
- none known
Summary
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.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 4 mo ago
Exploit prediction
0.34% chance of exploitation in the next 30 days, higher than 27% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N |
Affected products
- addonspress Advanced Import
Classification
- Weakness
-
- CWE-918 Server-Side Request Forgery
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/baf55ce7-8a33-426c-a6a4-158a95a13a5c?source=cve
- plugins.trac.wordpress.org /browser/advanced-import/trunk/admin/class-advanced-import-admin.php#L612
- plugins.trac.wordpress.org /browser/advanced-import/tags/1.4.5/admin/class-advanced-import-admin.php#L612
- plugins.trac.wordpress.org /browser/advanced-import/trunk/admin/class-advanced-import-admin.php#L561
- plugins.trac.wordpress.org /browser/advanced-import/tags/1.4.5/admin/class-advanced-import-admin.php#L561
- plugins.trac.wordpress.org /changeset?sfp_email=&sfph_mail=&reponame=&old=3566433%40advanced-import&new=3566433%40advanced-import&sfp_ema
Sources
- CVE List CVE-2026-4328
- NVD CVE-2026-4328
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.