CVE-2025-13859
AffiliateX 1.0.0 - 1.3.9.3 - Authenticated (Subscriber+) Missing Authorization to Stored Cross-Site Scripting via save_customization_settings
CVSS Score
6.4
EPSS Score
0.0%
EPSS Percentile
0th
The AffiliateX – Amazon Affiliate Plugin plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the save_customization_settings AJAX action in versions 1.0.0 to 1.3.9.3. This makes it possible for authenticated attackers, with Subscriber-level access and above, to store arbitrary JavaScript that executes whenever an AffiliateX block renders on the site.
| CWE | CWE-862 |
| Vendor | wpcenter |
| Product | affiliatex – amazon affiliate plugin |
| Published | Jan 15, 2026 |
| Last Updated | Jan 15, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
wpcenter / AffiliateX – Amazon Affiliate Plugin
1.0.0 ≤ 1.3.9.3
References
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/36d57b8d-7e62-413b-8ea9-87963b8cd469?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/changeset/3420957/affiliatex/trunk/includes/functions/AjaxFunctions.php plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/changeset/3420957/affiliatex/trunk/includes/helpers/class-affiliatex-helpers.php
Credits
Kenneth Dunn