CVE-2020-36854 – Async JavaScript

CVE ID : CVE-2020-36854

Published : Oct. 18, 2025, 4:16 a.m. | 25 minutes ago

Description : The Async JavaScript plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 2.19.07.14. This is due to missing authorization checks on the aj_steps AJAX aciton along with a lack on sanitization on the settings saved via the function. This makes it possible for authenticated attackers with subscriber level permissions and above to inject malicious web scripts into a page that execute whenever a user accesses that page.

Severity: 6.4 | MEDIUM

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