AffiliateX 1.0.0 - 1.3.9.3 - Authenticated (Subscriber+) Missing Authorization to Stored Cross-Site Scripting via save_customization_settings

2026-01-15 00:30

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Strategic Overview

Status

Patched in 1.4.0

Affected PluginAffiliateX – Amazon Affiliate Plugin, Product Boxes, Comparison Tables & Affiliate Link Tracking

Affected Version1.0.0 – 1.3.9.3

CVSS6.4Medium

CVECVE-2025-13859

View all AffiliateX – Amazon Affiliate Plugin, Product Boxes, Comparison Tables & Affiliate Link Tracking vulnerabilities

Vulnerability Overview

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.

Technical Analysis

REMEDIATION: Update to version 1.4.0, or a newer patched version --- IDENTIFIER: CWE-862 (Missing Authorization) The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

External References

https://www.cve.org/CVERecord?id=CVE-2025-13859 https://www.wordfence.com/threat-intel/vulnerabilities/id/36d57b8d-7e62-413b-8ea9-87963b8cd469

CVSS Vector

6.4

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeChanged
ConfidentialityLow
IntegrityLow
AvailabilityNone

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