CVE-2020-36854

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.

PUBLISHED Reserved 2025-10-17 | Published 2025-10-18 | Updated 2025-10-18 | Assigner Wordfence

Problem types

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Product status

Timeline

Credits

Mikey Veenstra finder

References

www.wordfence.com/...-7673-4796-917c-486bff1b6b12?source=cve

www.wordfence.com/...oits-multiple-zero-day-vulnerabilities/

cve.org (CVE-2020-36854)

nvd.nist.gov (CVE-2020-36854)

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