weMail <= 2.0.7 - Insufficient Authorization via x-wemail-user Header to Sensitive Information Disclosure

Improper Authorization
CVE CVE-2025-14348
CVSS Medium (5.3)
Publicly Published January 19, 2026
Last Updated January 20, 2026
Researcher shark3y
Description

The weMail - Email Marketing, Lead Generation, Optin Forms, Email Newsletters, A/B Testing, and Automation plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 2.0.7. This is due to the plugin's REST API trusting the `x-wemail-user` HTTP header to identify users without verifying the request originates from an authenticated WordPress session. This makes it possible for unauthenticated attackers who know or can guess an admin email (easily enumerable via `/wp-json/wp/v2/users`) to impersonate that user and access the CSV subscriber endpoints, potentially exfiltrating subscriber PII (emails, names, phone numbers) from imported CSV files.

References

1 affected software package

Software Type Plugin
Software Slug wemail (view on wordpress.org)
Patched? Yes
Affected Version
  • <= 2.0.7
Patched Version
  • 2.0.8
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