CVE-2025-23703

HIGH 7.1

WordPress Free MailClient FMC plugin <= 1.0 - CSRF to Stored XSS vulnerability

CVSS Score

7.1

EPSS Score

0.0%

EPSS Percentile

0th

Cross-Site Request Forgery (CSRF) vulnerability in cstoltenkamp Free MailClient FMC mailclient allows Stored XSS.This issue affects Free MailClient FMC: from n/a through <= 1.0.

CWE	CWE-352
Vendor	cstoltenkamp
Product	free mailclient fmc
Published	Jan 16, 2025
Last Updated	Apr 28, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

Low

Affected Versions

cstoltenkamp / Free MailClient FMC

0 ≤ 1.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

patchstack.com: https://patchstack.com/database/Wordpress/Plugin/mailclient/vulnerability/wordpress-free-mailclient-fmc-plugin-1-0-csrf-to-stored-xss-vulnerability?_s_id=cve

Credits

SOPROBRO | Patchstack Bug Bounty Program