Autoptimize <= 2.1.0 - Unauthenticated Local File Inclusion

9.8
Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion')
CVSS 9.8 (Critical)
Publicly Published June 19, 2017
Last Updated June 14, 2024
Researcher Matt Barry - Wordfence

Description

The Autoptimize plugin for WordPress is vulnerable to Local File Inclusion in versions up to, and including, 2.1.0. This allows unauthenticated attackers to include and execute arbitrary files on the server, allowing the execution of any PHP code in those files. This can be used to bypass access controls, obtain sensitive data, or achieve code execution in cases where images and other “safe” file types can be uploaded and included. This requires both JS and CSS aggregation, and the 'Also aggregate inline CSS' option to be set.

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Vulnerability Details for Autoptimize

Software Type Plugin
Software Slug autoptimize (view on wordpress.org)
Patched? Yes
Remediation Update to version 2.1.1, or a newer patched version
Affected Version
  • <= 2.1.0
Patched Version
  • 2.1.1

Recent vulnerabilities in Autoptimize

# Title CVE ID CVSS Researchers Date
1 Multiple Plugins <= Multiple Versions - Unauthenticated Stored Cross-Site Scripting CVE-2026-3220 7.2 stealthcopter, WPscan April 27, 2026
2 Autoptimize <= 3.1.14 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'ao_post_preload' Meta Value CVE-2026-2352 6.4 bashu March 20, 2026
3 Autoptimize <= 3.1.14 - Authenticated (Contributor+) Stored Cross-Site Scripting via Lazy-loaded Image Attributes CVE-2026-2430 6.4 stealthcopter March 20, 2026
4 Autoptimize <= 3.1.13 - Authenticated (Contributor+) Stored Cross-Site Scripting CVE-2025-13401 6.4 Muhammad Yudha - DJ December 3, 2025
5 Autoptimize <= 3.1.6 - Authenticated (Admin+) Stored Cross-Site Scripting via Critical CSS Rules CVE-2023-2113 4.4 Juampa Rodríguez April 25, 2023
6 Autoptimize <= 3.0.4 - Sensitive Information Disclosure CVE-2022-4057 5.3 Raad Haddad December 5, 2022
7 Autoptimize <= 3.1.0 - Authenticated (Admin+) Stored Cross-Site Scripting via Critical CSS Settings CVE-2022-2635 5.5 Raad Haddad July 19, 2022
8 Autoptimize <= 2.8.3 - Stored Cross-Site Scripting CVE-2021-24332 5.5 R3N0 May 7, 2021
9 Autoptimize <= 2.7.7 - Arbitrary File Upload (and Remote Code Execution) via Import Settings CVE-2021-24376 9.8 Marcin Węgłowski October 9, 2020
10 Autoptimize <= 2.7.7 - Unsafe File Upload to Cross-Site Scripting CVE-2021-24378 4.8 Marcin Węgłowski October 9, 2020

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