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.
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Fixes

Solution

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Workaround

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History

Thu, 15 Jan 2026 13:45:00 +0000

Type Values Removed Values Added
Description 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.
Title AffiliateX 1.0.0 - 1.3.9.3 - Authenticated (Subscriber+) Missing Authorization to Stored Cross-Site Scripting via save_customization_settings
Weaknesses CWE-862
References
Metrics cvssV3_1

{'score': 6.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Wordfence

Published:

Updated: 2026-01-15T15:33:05.125Z

Reserved: 2025-12-01T20:41:11.917Z

Link: CVE-2025-13859

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-01-15T14:16:26.040

Modified: 2026-01-15T14:16:26.040

Link: CVE-2025-13859

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses