CVE-2024-1852: WP-Members Membership Plugin <= 3.4.9.2 - Unauthenticated Stored Cross-Site Scripting

Severity: medium (CVSS 6.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-04-09 · updated 2026-06-17
Weakness: CWE-79

Description

The WP-Members Membership Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the X-Forwarded-For header in all versions up to, and including, 3.4.9.2 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page which is the edit users page. This vulnerability was partially patched in version 3.4.9.2, and was fully patched in 3.4.9.3.

Affected products

cbutlerjr WP-Members Membership Plugin: before 3.4.9.3 — fixed in 3.4.9.3

How to fix

Upgrade to a fixed version: cbutlerjr WP-Members Membership Plugin 3.4.9.3. Check the vendor advisory for mitigations.

References

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