What’s Vulnerable › Vulnerabilities

CVE-2022-4469: Simple Membership < 4.2.2 - Contributor+ Stored XSS

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-01-16 · updated 2026-06-17

Description

The Simple Membership WordPress plugin before 4.2.2 does not validate and escape some of its shortcode attributes before outputting them back in the page, which could allow users with a role as low as contributor to perform Stored Cross-Site Scripting attacks which could be used against high privilege users such as admin.

Affected products

• Simple Membership: before 4.2.2 — fixed in 4.2.2

How to fix

Upgrade to a fixed version: Simple Membership 4.2.2. Check the vendor advisory for mitigations.

References

• https://wpscan.com/vulnerability/b195c373-1db9-4fd7-98d0-0860dacd189e
• https://wpscan.com/vulnerability/b195c373-1db9-4fd7-98d0-0860dacd189e

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