Read the docs
TI-2026-76434 Aliases CVE-2026-111829GHSA-jr4g-qw53-whmx

Local file inclusion in WP Mailster WordPress plugin

Priority LOW 29CWE-98Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · None · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-98.

Summary

The WP Mailster WordPress plugin from n/a through 1.9.1.0 does not control the filename in a PHP include statement, which allows local file inclusion (CWE-98). A remote attacker with low privileges can make the plugin include local files, exposing confidential data.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in WP Mailster WP Mailster wp-mailster allows PHP Local File Inclusion.This issue affects WP Mailster: from n/a through 1.9.1.0.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00321 25th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
brandtossWP Mailsterup to 1.9.1.0—No fix listedCNA
  • WP Mailster Vendorbrandtoss Affected up to 1.9.1.0 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for WP Mailster.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Timeline

  1. 2026-10-19 Threatist record created from CVE-2026-111829
  2. 2026-10-19 Alias added: GHSA-jr4g-qw53-whmx
  3. 2026-10-20 CISA SSVC decision points changed
  4. 2026-10-20 Priority changed: MEDIUM → LOW

References

Other 1

  • TI-2024-36003 WordPress WP Mailster plugin <= 1.8.16.0 - Broken Access Control vulnerability CVSS 3.1CRITICAL 9.8
  • TI-2026-78797 Unrestricted file upload in WordPress WP Mailster plugin CVSS 3.1CRITICAL 10.0
  • TI-2024-36005 WordPress WP Mailster plugin <= 1.8.16.0 - SQL Injection vulnerability CVSS 3.1CRITICAL 9.8
  • TI-2024-36002 WordPress WP Mailster plugin <= 1.8.16.0 - Sensitive Data Exposure vulnerability CVSS 3.1HIGH 7.5
  • TI-2025-16207 WordPress WP Mailster plugin <= 1.8.17.0 - Sensitive Data Exposure vulnerability CVSS 3.1HIGH 7.5
  • TI-2024-36001 WordPress WP Mailster plugin <= 1.8.16.0 - Broken Access Control vulnerability CVSS 3.1HIGH 8.8
See all 18 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences