CVE-2025-64203: WordPress Mailster plugin < 4.1.14

Record summary

CVE-2025-64203 has a selected CVSS score of 7.1 (high).

Description

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.

Description source: CVE List

Exploitation context

CISA SSVC decision

ExploitationNone

AutomatableNo

Technical impactPartial

CISA Coordinator · SSVC 2.0.3 · Evaluated Dec 18, 2025 · Source: CVE List

Affected products and versions

Product	Source	Version range	Status
Mailster Browse EverPress / Mailster Default status: unaffected	CVE List	Through 4.1.14	affected

References

nvd.nist.gov

https://nvd.nist.gov/vuln/detail/CVE-2025-64203

patchstack.comvdb entry

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

vdp.patchstack.com

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