Echo Knowledge Base – Documentation, FAQs, AI Chat & AI Search <= 17.311.0 - Authenticated (Subscriber+) Sensitive Information Exposure via KB Search
- ID
- WPSEC-2026-1234
- Plugin
- Echo Knowledge Base – Documentation, FAQs, Chat & Smart Search (echo-knowledge-base)
- Affected
- all versions before 17.311.1
- Remediation
- Update to 17.311.1 or later.
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
- Weakness
- CWE-200
- Usage
- Plugin Low · Affected versions None seen among sites WPSec scans, 2026-10-18
- Attack surface
- Echo Knowledge Base – Documentation, FAQs, AI Chat & AI Search on WPSec AttackSurface
- Fix released
- Published
Description
The Echo Knowledge Base plugin for WordPress is vulnerable to Sensitive Information Exposure via the 'epkb-search-kb' AJAX search in all versions up to, and including, 17.311.0. This is due to the knowledge base search query not excluding password-protected articles; WordPress core hides such posts from search only for logged-out visitors. This makes it possible for authenticated attackers, with Subscriber-level access and above, to get password-protected knowledge base articles in search results, including their manual excerpts when excerpts are shown in results, and to search the protected article content without knowing the password.
References
- https://wpsec.com/vuln/WPSEC-2026-1234/
- https://plugins.svn.wordpress.org/echo-knowledge-base/tags/17.311.1/
- https://wordpress.org/plugins/echo-knowledge-base/
Published by WPSec. Provided as is, without warranty. Corrections: contact us.
This advisory as JSON or Markdown · All advisories: JSON, RSS