weMail - Email Marketing, Lead Generation, Optin Forms, Email Newsletters, A/B Testing, and Automation: A security weakness
weMail - Email Marketing, Lead Generation, Optin Forms, Email Newsletters, A/B Testing, and Automation is affected by a security weakness. The vulnerable path is reachable without authentication. The resulting impact depends on how the affected component exposes the vulnerable operation.
- Component
- weMail - Email Marketing, Lead Generation, Optin Forms, Email Newsletters, A/B Testing, and Automation
- Plugin slug
wemail- Affected
- See vendor advisory
- Safe version
- See mitigation notes
- Published
- Jan 20, 2026
- Weakness
- CWE-285 — Improper Authorization
This CVE was published Jan 20, 2026 and is one of 6 known issues for this plugin.
Update, patch or deactivate.
Update weMail - Email Marketing, Lead Generation, Optin Forms, Email Newsletters, A/B Testing, and Automation to a release outside the affected range, or disable and remove it until a fixed version is available.
No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.
Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.
Technical 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.
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N