KB Support – Customer Support Ticket & Helpdesk Plugin, Knowledge Base Plugin <= 1.7.4 - Unauthenticated Sensitive Information Exposure Through Unprotected Directory
Strategic Overview
- Status
- Unpatched
- Affected Version
<= 1.7.4- CVSS
- 7.5High
- Weakness type
- CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor
- CVE
CVE-2024-13604
At a glance
CVE-2024-13604 is a high-severity Exposure of Sensitive Information to an Unauthorized Actor vulnerability in the KB Support WordPress plugin, affecting versions <= 1.7.4. It carries a CVSS score of 7.5 (reachable over the network; low attack complexity; high confidentiality impact). Exploitation requires no authentication. No fixed release has been reported yet; treat installations running this software as exposed. Disclosed April 2025, reported by Tim Coen.
Vulnerability Overview
The KB Support – Customer Support Ticket & Helpdesk Plugin, Knowledge Base Plugin plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 1.7.4 via the 'kbs' directory. This makes it possible for unauthenticated attackers to extract sensitive data stored insecurely in the /wp-content/uploads/kbs directory which can contain file attachments included in support tickets. The vulnerability was partially patched in version 1.7.3.2.
Technical Analysis
The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site, and no interaction from a victim user. A successful exploit has high impact on confidentiality.
CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
KB Support <= 1.7.4 carries this weakness at kbs, and reaching it takes no account at all. Sensitive information exposure means data the application intended to keep internal is returned to a caller who should not be able to see it.
The disclosed data — credentials, tokens, customer records or internal paths — is usually worth more as material for a follow-up attack than as an end in itself. No fixed build of this plugin is recorded for KB Support yet, so installs running <= 1.7.4 stay exposed until the vendor ships one.
Remediation
No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement.
How does WordSec protect against this?
This one needs no account at all, which puts it outside what login hardening can reach; WordSec's login security narrows the account-level paths around it, and the firewall is what inspects the request itself. No patched version is recorded yet, which is the case where a filtering layer matters most, because there is nothing to update to.
- Login Security
- Alerts
External References
Related records
Other vulnerabilities in KB Support – Customer Support Ticket & Helpdesk Plugin, Knowledge Base Plugin
- 8.1CVE-2024-8548: KB Support Authenticated (Subscriber+) Multiple
CVE-2024-8548 - 6.5CVE-2024-8632: KB Support Unauthenticated Ticket Reply Exposure
CVE-2024-8632 - 6.1CVE-2025-24741: KB Support <= 1.6.7 Open Redirect
CVE-2025-24741 - 5.4CVE-2023-37890: KB Support <= 1.5.88 Sensitive Data Exposure
CVE-2023-37890 - 4.7CVE-2022-27852: KB Support Multiple Unauthenticated Stored XSS
CVE-2022-27852 - 4.4CVE-2023-25983: KB Support <= 1.5.84 CSV Injection
CVE-2023-25983 - 4.3CVE-2024-33589: KB Support <= 1.6.0 Missing Authorization
CVE-2024-33589 - 4.3KB Support <= 1.5.88 Authenticated (Subscriber+) User Data Retrieval
Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C