WordPress Free WP Mail SMTP plugin <= 1.0 - Cross Site Request Forgery (CSRF) to Stored XSS vulnerability

7.1 CVSS

Vulnerability Description

Cross-Site Request Forgery (CSRF) vulnerability in mail250 Free WP Mail SMTP free-wp-mail-smtp allows Stored XSS.This issue affects Free WP Mail SMTP: from n/a through <= 1.0.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

THREAT MONITOR

Am I Vulnerable?

Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2025-28974

Check My Exposure

Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

Nguyen Xuan Chien | Patchstack Bug Bounty Program

References

https://patchstack.com/database/Wordpress/Plugin/free-wp-mail-smtp/vulnerability/wordpress-free-wp-mail-smtp-plugin-1-0-cross-site-request-forgery-csrf-to-stored-xss-vulnerability?_s_id=cve

Affected Vendor

mail250

View all reports →

Affected Software

Free WP Mail SMTP

Vulnerable Versions:

Timeline

Official Publish: June 6th, 2025

Last Modified: April 28th, 2026

Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

Weaknesses (CWE)

CWE-352

MITRE ATT&CK TTPs

T1566.002 Spearphishing Link

Initial Access

T1204.001 Malicious Link

Execution

T1098 Account Manipulation

Persistence

T1565.001 Stored Data Manipulation

Impact