Simple Membership <= 4.5.5 - Exposure of Private Personal Information to an Unauthorized Actor
Strategic Overview
- Status
- Patched in 4.5.6
- Affected Plugin
- Simple Membership
- Affected Version
<= 4.5.5- CVSS
- 5.3Medium
- Weakness type
- CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor
- CVE
CVE-2024-11088
At a glance
CVE-2024-11088 is a medium-severity Exposure of Sensitive Information to an Unauthorized Actor vulnerability in the Simple Membership WordPress plugin, affecting versions <= 4.5.5. It carries a CVSS score of 5.3 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 4.5.6; sites on affected versions should update now. Disclosed November 2024, reported by Francesco Carlucci.
Vulnerability Overview
The Simple Membership plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 4.5.5 via the WordPress core search feature. This makes it possible for unauthenticated attackers to extract sensitive data from posts that have been restricted to higher-level roles such as administrator.
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.
CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
Reaching this weakness in Simple Membership <= 4.5.5 takes a caller who can reach the endpoint. 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. For Simple Membership the fix is 4.5.6: builds <= 4.5.5 are affected, anything from 4.5.6 onward is not.
Remediation
Update to version 4.5.6, or a newer patched version
How does WordSec protect against this?
The fix is the thing that ends this: Simple Membership 4.5.6 closes this, and updating the plugin is the step that ends it.
- Alerts
External References
Related records
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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