# CVE-2026-84821: WP Fast Total Search broken access control

Source: https://junglewise.ai/threats/cve-2026-84821-wp-fast-total-search-broken-access-control  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-10. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-84821 · Severity: high · CVSS 7.5 · Published 2026-09-10

WP Fast Total Search is a WordPress plugin that provides search functionality for WordPress sites. An unauthenticated attacker can bypass access controls to view or access data they should not have permission to see, potentially exposing sensitive information to unauthorized users without requiring any credentials or authentication.

Technologies: [Epsiloncool WP Fast Total Search](https://junglewise.ai/threats/technologies/wp-fast-total-search). Vendors: [Epsiloncool](https://junglewise.ai/threats/vendors/epsiloncool).

## Quick answers

**Is CVE-2026-84821 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-84821 being exploited in the wild.

**How severe is CVE-2026-84821?** High severity, with a CVSS score of 7.5, published 10 September 2026.

**Which products and versions are affected?** Epsiloncool WP Fast Total Search <= 1.82.284.

**Is there a fix for CVE-2026-84821?** A patch was published on 2026-09-09: Version 1.83.286 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-84821 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-84821?** Check whether you run Epsiloncool WP Fast Total Search at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

This vulnerability is a broken access control flaw in the WP Fast Total Search WordPress plugin (versions <= 1.82.284) that allows unauthenticated attackers to access restricted functionality and data. The vulnerability does not require authentication or user interaction—an attacker can directly access protected resources over the network. By exploiting this flaw, an attacker can view or manipulate data that should be restricted to authorized users, leading to unauthorized information disclosure. The vulnerability has been patched in version 1.83.286 and later.

## Affected products

- Epsiloncool WP Fast Total Search <= 1.82.284

## Timeline

- 2026-09-09: disclosed
- 2026-09-09: patched: Version 1.83.286

## References

- [https://wordpress.org/plugins](https://wordpress.org/plugins)
- [https://patchstack.com/database/wordpress/plugin/fulltext-search/vulnerability/wordpress-wp-fast-total-search-plugin-1-82-284-broken-access-control-vulnerability?_s_id=cve](https://patchstack.com/database/wordpress/plugin/fulltext-search/vulnerability/wordpress-wp-fast-total-search-plugin-1-82-284-broken-access-control-vulnerability?_s_id=cve)

## Related threats

- [WordPress WP Fast Total Search SQL injection in form_data[s]](https://junglewise.ai/threats/cve-2026-12741-wordpress-wp-fast-total-search-sql-injection-in-form-data-s)
- [Epsiloncool WP Fast Total Search broken access control](https://junglewise.ai/threats/cve-2026-27418-epsiloncool-wp-fast-total-search-broken-access-control)
- [Epsiloncool WP Fast Total Search SQL injection](https://junglewise.ai/threats/cve-2026-57683-epsiloncool-wp-fast-total-search-sql-injection)