CVE-2021-24307

The All in One SEO – Best WordPress SEO Plugin – Easily Improve Your SEO Rankings before 4.1.0.2 enables authenticated users with "aioseo_tools_settings" privilege (most of the time admin) to execute arbitrary code on the underlying host. Users can restore plugin's configuration by uploading a backup .ini file in the section "Tool > Import/Export". However, the plugin attempts to unserialize values of the .ini file. Moreover, the plugin embeds Monolog library which can be used to craft a gadget chain and thus trigger system command execution.

• CWE-502
• CWE-502

• https://aioseo.com/changelog/Release Notes, Vendor Advisory
• https://wpscan.com/vulnerability/ab2c94d2-f6c4-418b-bd14-711ed164bcf1Exploit, Third Party Advisory
• https://aioseo.com/changelog/Release Notes, Vendor Advisory
• https://wpscan.com/vulnerability/ab2c94d2-f6c4-418b-bd14-711ed164bcf1Exploit, Third Party Advisory

Published

May 24, 2021

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
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