CVE-2026-27418: Epsiloncool WP Fast Total Search broken access control

CVE-2026-27418 · Severity: medium · CVSS 5.3 · Published 2026-07-23

WP Fast Total Search, a WordPress plugin used to provide high-speed search functionality for websites, contains a security flaw that allows unauthorized users to perform actions they should not have access to. An attacker could exploit this to modify certain site settings or data without needing to log in. While the impact is currently rated as medium, it could lead to unauthorized changes to how the site handles search queries or internal data.

Technologies: Epsiloncool WP Fast Total Search. Vendors: Epsiloncool.

Quick answers

Is CVE-2026-27418 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-27418 being exploited in the wild.
How severe is CVE-2026-27418?
Medium severity, with a CVSS score of 5.3, published 23 July 2026.
Which products and versions are affected?
Epsiloncool WP Fast Total Search <= 1.81.282.
Is there a fix for CVE-2026-27418?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-27418 attacked?
It is attacked over the network, in a software library.
Am I affected by CVE-2026-27418?
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

The WP Fast Total Search plugin for WordPress is vulnerable to broken access control due to missing authorization checks (CWE-862) in versions up to and including 1.81.282. This vulnerability allows an unauthenticated remote attacker to execute functions or actions that should be restricted to higher-privileged users. The attack vector is network-based and requires no user interaction or prior authentication. According to the advisory, there is currently no official patch available, and the vulnerability could potentially be used in mass-exploit campaigns targeting WordPress sites.

Affected products

  • Epsiloncool WP Fast Total Search <= 1.81.282

Timeline

  • 2025-10-28: disclosed: Vulnerability reported by Que Thanh Tuan
  • 2026-07-23: advisory: NVD and Patchstack published the advisory

References

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.