CVE-2025-64203

HIGH 7.1

WordPress Mailster plugin < 4.1.14 - Cross Site Scripting (XSS) vulnerability

CVSS Score

7.1

EPSS Score

0.0%

EPSS Percentile

0th

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in EverPress Mailster mailster allows Reflected XSS.This issue affects Mailster: from n/a through < 4.1.14.

CWE	CWE-79
Vendor	everpress
Product	mailster
Published	Dec 18, 2025
Last Updated	Apr 1, 2026

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Affected Versions

EverPress / Mailster

0 ≤ 4.1.14

References

NVD ↗ CVE.org ↗ EPSS Data ↗

patchstack.com: https://patchstack.com/database/Wordpress/Plugin/mailster/vulnerability/wordpress-mailster-plugin-4-1-14-cross-site-scripting-xss-vulnerability?_s_id=cve

Credits

João Pedro S Alcântara (Kinorth) | Patchstack Bug Bounty Program