CVE-2021-24731: Pie Register < 3.7.1.6 - Unauthenticated SQL Injection

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 6.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2021-11-08 · updated 2026-06-17
Weakness: CWE-89

Description

The Registration Forms – User profile, Content Restriction, Spam Protection, Payment Gateways, Invitation Codes WordPress plugin before 3.7.1.6 does not properly escape user data before using it in a SQL statement in the wp-json/pie/v1/login REST API endpoint, leading to an SQL injection.

Affected products

genetechproducts Pie Register – User Registration, Profiles & Content Restriction: before 3.7.1.6 — fixed in 3.7.1.6

How to fix

Upgrade to a fixed version: genetechproducts Pie Register – User Registration, Profiles & Content Restriction 3.7.1.6. Check the vendor advisory for mitigations.

References

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