CVE-2021-24140: Ajax Load More < 5.3.2 - Authenticated SQL Injection

Severity: high (CVSS 7.2 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-03-18 · updated 2026-06-17
Weakness: CWE-89

Description

Unvalidated input in the Ajax Load More WordPress plugin, versions before 5.3.2, lead to SQL Injection in POST /wp-admin/admin-ajax.php with param repeater=' or sleep(5)#&type=test.

Affected products

dcooney Ajax Load More – Infinite Scroll, Load More, & Lazy Load: before 5.3.2 — fixed in 5.3.2

How to fix

Upgrade to a fixed version: dcooney Ajax Load More – Infinite Scroll, Load More, & Lazy Load 5.3.2. Check the vendor advisory for mitigations.

References

https://wpscan.com/vulnerability/1876312e-3dba-4909-97a5-afbb76fbc056
https://wpscan.com/vulnerability/1876312e-3dba-4909-97a5-afbb76fbc056

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