CVE-2026-111830

WordPress WP Mailster plugin <= 1.9.1.0 - Cross Site Scripting (XSS) vulnerability

State: Published
Severity: 7.1 High
Published: Oct 22, 2026
Updated: Oct 22, 2026
Reserved: Oct 17, 2026

Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in WP Mailster WP Mailster wp-mailster allows Stored XSS.This issue affects WP Mailster: from n/a through 1.9.1.0.

Scores

CVSS	Score	Vector	Source
3.1	7.1 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L	Patchstack

Weaknesses

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Affected Products

Product	Versions
WP MailsterWP Mailster	1.9.1.0 and earlierAffectedfrom 1.9.2.0Not affected

References

https://patchstack.com/database/wordpress/plugin/wp-mailster/vulnerability/wordpress-wp-mailster-plugin-1-9-1-0-cross-site-scripting-xss-vulnerability?_s_id=cvevdb-entry

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