TI-2026-83498 Aliases CVE-2026-119089 GHSA-f35f-w577-x9q2

Stored cross-site scripting in ThirstyAffiliates plugin for WordPress

LOW 31CWE-79Published 2026-10-31 · Updated 2026-11-01

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Cross-site scripting
Confidentiality · integrity · availability: Low · Low · None
Fix status: No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

The ThirstyAffiliates plugin for WordPress by supercleanse is affected in all versions up to and including 3.12.1. Insufficient input sanitization and output escaping of the comment parameter causes stored cross-site scripting (CWE-79). An unauthenticated attacker who gets one comment approved can inject scripts that run for users who open affected pages on block themes.

Written with Claude Haiku 5.5 from the sources below · 2026-11-05

Description from the CNA

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00236 14th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
supercleanse	ThirstyAffiliates – Affiliate Links, Link Branding, Link Tracking & Marketing Plugin	up to 3.12.1	—	No fix listed	CNA

ThirstyAffiliates – Affiliate Links, Link Branding, Link Tracking & Marketing Plugin Vendorsupercleanse Affected up to 3.12.1 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for the ThirstyAffiliates plugin (Affiliate Links, Link Branding, Link Tracking & Marketing Plugin).

Written with Claude Haiku 5.5 from the sources below · 2026-11-05

Timeline

2026-10-31 Threatist record created from CVE-2026-119089
2026-10-31 Alias added: GHSA-f35f-w577-x9q2
2026-11-01 Priority changed: MEDIUM → LOW
2026-11-01 CISA SSVC decision points changed

References

Other 5

TI-2026-10665 Members <= 3.2.22 - Unauthenticated Sensitive Information Disclosure via REST API Pagination Side Channel CVSS 3.1MEDIUM 5.3
TI-2024-10199 Members <= 3.2.10 - Unauthenticated Content Restriction Bypass to Sensitive Information Exposure CVSS 3.1MEDIUM 5.3
TI-2026-01011 Buy Now Plus <= 1.0.2 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode Attributes CVSS 3.1MEDIUM 6.4
TI-2026-04417 PrettyLinks <= 3.6.20 - Authenticated (Administrator+) SQL Injection via 's' Parameter CVSS 3.1MEDIUM 4.9

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences