# Widgets for Amazon Reviews <= 14.3 - Unauthenticated Uncontrolled Resource Consumption via Online Visitor Counter

- **ID:** WPSEC-2026-3095
- **Plugin:** Widgets for Amazon Reviews (`review-widgets-for-amazon`), https://wordpress.org/plugins/review-widgets-for-amazon/
- **Affected versions:** from 13.2 before 15.0
- **Fixed in:** 15.0 (Update to 15.0 or later.)
- **Severity:** Medium 5.3 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
- **Weakness:** CWE-770
- **Usage among sites WPSec scans:** plugin Low, affected versions Low (as of 2026-11-13)
- **Attack surface analysis:** https://attacksurface.wpsec.com/plugin/review-widgets-for-amazon
- **Fix released:** 2026-11-12
- **Published:** 2026-11-13
- **URL:** https://wpsec.com/vuln/WPSEC-2026-3095/

## Description

The Widgets for Amazon Reviews plugin for WordPress is vulnerable to Uncontrolled Resource Consumption via the online visitor counter endpoint in all versions up to, and including, 14.3, due to the plugin storing visitor data in a new 'ti-online-users-<page>' option for every page value it receives in the 'p' parameter. The plugin never deletes these options and does not limit how many it creates. This makes it possible for unauthenticated attackers to fill the options table with an unlimited number of rows, which degrades database performance and uses up disk space.

## References

- https://wpsec.com/vuln/WPSEC-2026-3095/
- https://plugins.svn.wordpress.org/review-widgets-for-amazon/tags/15.0/
- https://wordpress.org/plugins/review-widgets-for-amazon/

Source: WPSec, https://wpsec.com/vuln/WPSEC-2026-3095/

License: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Free to use, share and adapt, also commercially, if you credit WPSec and link to this advisory.