CVE-2026-4328Network attack vector

Authenticated internal service access via unvalidated demo_file URL

Published Jun 19, 2026 · Updated Jun 19, 2026

Server-side request forgery in AddonsPress Advanced Import 1.4.6 and earlier allows remote authenticated users to query internal services. The demo_download_and_unzip() AJAX handler passes the POST demo_file value, after only text sanitization, directly to wp_remote_get() without rejecting internal or private destinations. Author-level access with the upload_files capability is required, and the resulting server-originated requests expose responses from internal services, including cloud metadata endpoints.

CVSS severity6.4
Medium
EPSS probability0.34%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Server-side request forgery in AddonsPress Advanced Import 1.4.6 and earlier allows remote authenticated users to query internal services. The demo_download_and_unzip() AJAX handler passes the POST demo_file value, after only text sanitization, directly to wp_remote_get() without rejecting internal or private destinations. Author-level access with the upload_files capability is required, and the resulting server-originated requests expose responses from internal services, including cloud metadata endpoints.

The record

CVE
CVE-2026-4328
Published
Jun 19, 2026
Updated
Jun 19, 2026
Vendor
AddonsPress
Product
Advanced Import
Classifications
CWE-918, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 19, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 19, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=1.4.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

AddonsPress · Advanced Importversion=0 <=1.4.6

Published CVSS scores

6.4WordfenceCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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