Knowledge Base documentation & wiki plugin – BasePress <= 2.16.1 - Authenticated (Subscriber+) Server-Side Request Forgery
Strategic Overview
- Status
- Patched in 2.16.2.1
- Affected Plugin
- Knowledge Base documentation & wiki plugin – BasePress Docs
- Affected Version
<= 2.16.1- CVSS
- 6.4Medium
- Weakness type
- CWE-918 · Server-Side Request Forgery (SSRF)
- CVE
CVE-2024-33590
At a glance
CVE-2024-33590 is a medium-severity Server-Side Request Forgery (SSRF) vulnerability in the Knowledge Base documentation & wiki plugin WordPress plugin, affecting versions <= 2.16.1. It carries a CVSS score of 6.4 (reachable over the network; low attack complexity). Exploitation requires an authenticated account at Subscriber level or above. The issue is fixed in version 2.16.2.1; sites on affected versions should update now. Disclosed April 2024, reported by beluga.
Vulnerability Overview
The Knowledge Base documentation & wiki plugin – BasePress Docs plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 2.16.1 via the theme_style_render() function. This makes it possible for authenticated attackers, with subscriber-level access and above, to make web requests to arbitrary locations originating from the web application and can be used to query and modify information from internal services.
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 interaction from a victim user.
CWE-918: Server-Side Request Forgery (SSRF)
Knowledge Base documentation & wiki plugin <= 2.16.1 carries this weakness at theme_style_render(), and reaching it takes an account at Subscriber level or above. Server-side request forgery means the application fetches a URL supplied by the caller, turning the server into a proxy for requests the attacker could not make directly.
The request originates from inside the hosting network, which is how these flaws reach cloud metadata endpoints, internal admin panels and services that trust local traffic. For Knowledge Base documentation & wiki plugin the fix is 2.16.2.1: builds <= 2.16.1 are affected, anything from 2.16.2.1 onward is not.
Remediation
Update to version 2.16.2.1, or a newer patched version
How does WordSec protect against this?
An attacker needs Subscriber access first, so the firewall sees the attempt as traffic from a logged-in account: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Knowledge Base documentation & wiki plugin 2.16.2.1 closes this, and updating the plugin is the step that ends it.
- Firewall
- Alerts
External References
Related records
Other vulnerabilities in Knowledge Base documentation & wiki plugin – BasePress Docs
- 6.4CVE-2025-62761: Knowledge Base documentation & wiki… Stored XSS
CVE-2025-62761 - 6.3CVE-2022-4974: Freemius SDK <= 2.4.2 Missing Authorization Checks
CVE-2022-4974 - 6.1CVE-2024-13362: Freemius <= 2.10.1 Reflected DOM-Based XSS
CVE-2024-13362 - 4.3CVE-2024-10664: Knowledge Base… Authenticated (Subscriber+) Database
CVE-2024-10664 - 4.3CVE-2024-33588: Knowledge Base… Missing Authorization
CVE-2024-33588
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