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Back to active CVEs
Medium · CVSS 5.3CVE-2026-105055

WordPress WP Mailster plugin <= 1.9.0.0 - Broken Access Control vulnerabilityCVE-2026-105055

Answer in brief

CVE-2026-105055 records a Medium severity (CVSS 5.3) vulnerability in WordPress WP Mailster plugin <= 1.9.0.0 - Broken Access Control vulnerability. The current sources do not mark it as known exploited. The current feed maps WP Mailster/wp-mailster (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 5, 2026Updated Oct 5, 2026Source checked Oct 5, 2026First seen by HOL Oct 5, 2026Material review Oct 5, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 5.3
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Not reported

Why this deserves its current priority

CVSS is 5.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps WP Mailster/wp-mailster (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
WP Mailster/wp-mailstergeneric>=0 <=1.9.0.0Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for WP Mailster/wp-mailster.
  2. 2Review the reported fix. Source-reported solution: Update the WordPress WP Mailster plugin to the latest available version (at least 1.9.1.0).

Evidence timeline and material changes

  1. Published upstream

    Oct 5, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 5, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 5, 2026

Sources and claim methodology

  • Source referencepatchstack.com
Upstream source 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.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • WordPress WP VR plugin <= 9.1.3 - Broken Access Control vulnerabilityAlso CWE-862
  • WordPress PowerPress Podcasting plugin <= 11.17.9 - Sensitive Data Exposure vulnerabilityAlso CWE-862
  • WordPress Name Directory plugin <= 1.34.2 - Arbitrary Shortcode Execution vulnerabilityAlso CWE-862
  • WordPress Event Tickets plugin <= 5.30.0 - Broken Access Control vulnerabilityAlso CWE-862
  • WordPress WP Admin Audit plugin <= 1.2.17 - Broken Access Control vulnerabilityAlso CWE-862
  • WordPress Starter Templates plugin <= 4.7.7 - Broken Access Control vulnerabilityAlso CWE-862

Record context

Vulnerability class
Missing Auth
EPSS
Not reported
CWE IDs
CWE-862
Source
CVE List V5
Source checked
Oct 5, 2026
References
1 linked source
Open source record