Vulnerability · Published Oct 5, 2026 · Assigned by Patchstack
CVE-2026-105055WordPress WP Mailster plugin <= 1.9.0.0 - Broken Access Control vulnerability
Medium 5.3
In plain English
A medium-severity missing authorization in WP Mailster from WP Mailster. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 8% of all known vulnerabilities).
Severity (CVSS 3.1)5.3Medium
Exploit odds (30 days)0.2%top 91.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Missing Authorization vulnerability in WP Mailster WP Mailster wp-mailster allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects WP Mailster: from n/a through 1.9.0.0.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| WP Mailster | WP Mailster | 0 – through 1.9.0.0 |
Weakness: CWE-862 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N