Strategic Overview
- Status
- Patched in 4.4.2
- Affected Plugin
- Simple Membership
- Affected Version
<= 4.4.1- CVSS
- 6.1Medium
- Weakness type
- CWE-601 · URL Redirection to Untrusted Site ('Open Redirect')
- CVE
CVE-2024-22308
At a glance
CVE-2024-22308 is a medium-severity URL Redirection to Untrusted Site ('Open Redirect') vulnerability in the Simple Membership WordPress plugin, affecting versions <= 4.4.1. It carries a CVSS score of 6.1 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 4.4.2; sites on affected versions should update now. Disclosed January 2024, reported by Joshua Chan.
Vulnerability Overview
The Simple Membership plugin for WordPress is vulnerable to Open Redirect in all versions up to, and including, 4.4.1. This is due to insufficient validation on the redirect url supplied via the swpm_page_url parameter. This makes it possible for unauthenticated attackers to redirect users to potentially malicious sites if they can successfully trick them into performing an action.
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.
CWE-601: URL Redirection to Untrusted Site ('Open Redirect')
Reaching this weakness in Simple Membership <= 4.4.1 takes a caller who can reach the endpoint. An open redirect is a page that takes a destination from the request and sends the browser there without checking that the destination belongs to the site.
A link that starts on a trusted domain finishes on an attacker's, which is what makes phishing and consent-screen abuse credible to the person clicking it. For Simple Membership the fix is 4.4.2: builds <= 4.4.1 are affected, anything from 4.4.2 onward is not.
Remediation
Update to version 4.4.2, or a newer patched version
How does WordSec protect against this?
The attempt arrives as an ordinary request to Simple Membership: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Simple Membership 4.4.2 closes this, and updating the plugin is the step that ends it.
- Firewall
- Alerts
External References
Related records
Same weakness class
Other vulnerabilities in Simple Membership
- 9.8CVE-2022-2317: Simple Membership Membership Privilege Escalation
CVE-2022-2317 - 8.8CVE-2023-41956: Simple Membership <= 4.3.4 Account Takeover
CVE-2023-41956 - 8.8CVE-2022-2273: Simple Membership Membership Privilege Escalation
CVE-2022-2273 - 8.8CVE-2022-0328: Simple Membership CSRF to Arbitrary Member Deletion
CVE-2022-0328 - 8.8CVE-2019-14328: Simple Membership <= 3.8.4 Cross-Site Request Forgery
CVE-2019-14328 - 8.8CVE-2016-10884: Simple Membership <= 3.3.2 Multiple CSRF
CVE-2016-10884 - 7.3CVE-2023-41957: Simple Membership <= 4.3.4 Privilege escalation
CVE-2023-41957 - 7.2CVE-2026-15931: Simple Membership <= 4.7.7 Stored Cross-Site Scripting
CVE-2026-15931
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