What’s Vulnerable › Vulnerabilities

CVE-2021-24979: Paid Memberships Pro < 2.6.6 - Reflected Cross-Site Scripting

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.7% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-12-27 · updated 2026-06-17
• Weakness: CWE-79

Description

The Paid Memberships Pro WordPress plugin before 2.6.6 does not escape the s parameter before outputting it back in an attribute in an admin page, leading to a Reflected Cross-Site Scripting

Affected products

• Paid Memberships Pro: before 2.6.6 — fixed in 2.6.6

How to fix

Upgrade to a fixed version: Paid Memberships Pro 2.6.6. Check the vendor advisory for mitigations.

References

• https://plugins.trac.wordpress.org/changeset/2632369/paid-memberships-pro/tags/2.6.6/adminpages/discountcodes.php
• https://wpscan.com/vulnerability/fc011990-4ec1-4553-901d-4ff1f482cb79
• https://plugins.trac.wordpress.org/changeset/2632369/paid-memberships-pro/tags/2.6.6/adminpages/discountcodes.php
• https://wpscan.com/vulnerability/fc011990-4ec1-4553-901d-4ff1f482cb79

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