CVE-2024-11782
WP Mailster <= 1.8.17.0 - Authenticated (Contributor+) Stored Cross-Site Scripting
CVSS Score
6.4
EPSS Score
0.0%
EPSS Percentile
0th
The WP Mailster plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'mst_subscribe' shortcode in all versions up to, and including, 1.8.17.0 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
| CWE | CWE-79 |
| Vendor | brandtoss |
| Product | wp mailster |
| Published | Dec 3, 2024 |
| Last Updated | Apr 8, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
brandtoss / WP Mailster
0 ≤ 1.8.17.0
References
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/909beed4-06a9-4ec4-bf00-4072a38af82b?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/wp-mailster/tags/1.8.17.0/mailster/subscr/SubscriberPlugin.php#L216 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/changeset/3198497/wp-mailster/trunk/mailster/subscr/SubscriberPlugin.php
Credits
Peter Thaleikis