All in One SEO Pack < 4.1.0.2 - Admin RCE via unserialize
15Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 53%
exploitation probability
53%top 1% of all CVEs
observed exploitation
nono source reports it
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.