CVSS v3
8.8
HIGH
EPSS Score
41.8%
exploit probability
CISA KEV
No
known exploited
Exploitation
—
SSVC status
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.
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.
Active exploitation of CVE-2021-24307 has not been confirmed. The EPSS score is 41.8%, indicating the estimated probability of exploitation in the next 30 days.
CVE-2021-24307 has a CVSS v3 base score of 8.8 (HIGH severity).
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Ranked by exploit probability (EPSS).