Autoptimize <= 2.7.6 - Authenticated Arbitrary File Upload

Unrestricted Upload of File with Dangerous Type
CVE CVE-2020-24948
CVSS 7.2 (High)
Publicly Published August 24, 2020
Last Updated January 19, 2023
Researcher Nguyen Van Khanh


The ao_ccss_import AJAX call in Autoptimize Wordpress Plugin 2.7.6 does not ensure that the file provided is a legitimate Zip file, allowing high privilege users to upload arbitrary files, such as PHP, leading to remote command execution.



1 affected software package

Software Type Plugin
Software Slug autoptimize (view on
Patched? Yes
Remediation Update to version 2.7.7, or a newer patched version
Affected Version
  • <= 2.7.6
Patched Version
  • 2.7.7

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