CVE-2026-119089 Details
Description
The ThirstyAffiliates – Affiliate Links, Link Branding, Link Tracking & Marketing Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'comment' parameter in all versions up to, and including, 3.12.1 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This vulnerability is only exploitable on block themes (such as Twenty Twenty-Five) where the Comment Content block causes comment HTML to flow through render_block, triggering the plugin's transformer. Additionally, a successful attack requires the attacker to have had one prior comment approved, after which subsequent crafted comments are auto-approved and rendered publicly.
A stored cross-site scripting vulnerability has been identified in the ThirstyAffiliates WordPress plugin, specifically in versions through 3.12.1. The issue arises from inadequate input sanitization and output escaping, allowing unauthenticated attackers to inject arbitrary scripts into pages. These scripts execute when users access the affected pages. The vulnerability is exploitable only on block themes, such as Twenty Twenty-Five, where comments are processed in a way that triggers the plugin's script transformation. Additionally, an attacker must have at least one previously approved comment, as subsequent crafted comments are automatically approved and made public.
Users are advised to update the ThirstyAffiliates WordPress plugin to version 3.12.2 or later.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 31, 2026CISA-ADP
Assessed Nov 1, 2026References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-79 | Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| ThirstyAffiliates | <= 3.12.1 (semver) |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Nov 1, 2026 | CVE Modified | CISA-ADP |
| Oct 31, 2026 | New CVE Received | [email protected] |