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.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 53.3%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.
Description
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.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 53.27% probability · 99th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-502
- Affected
- aioseo/all in one seo
- Source
- contact@wpscan.com
References
- 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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.