CVE-2021-24307
8.8 · HIGHOverview
CVE-2021-24307 is a high-severity vulnerability affecting aioseo all_in_one_seo. It was published on May 24, 2021 and has a CVSS 3.1 base score of 8.8 (HIGH).
This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical 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.
Remediation
Check the references section for vendor advisories and patches from aioseo. Update all_in_one_seo to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| aioseo | all_in_one_seo | >= 0, < 4.1.0.2 | Affected |
Frequently Asked Questions
What is CVE-2021-24307?
CVE-2021-24307 is a high-severity vulnerability affecting aioseo all_in_one_seo. It was published on May 24, 2021 and has a CVSS 3.1 base score of 8.8 (HIGH).
How severe is CVE-2021-24307?
This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2021-24307?
Check the references section for vendor advisories and patches from aioseo. Update all_in_one_seo to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2021-24307?
CyberStrike's AI-powered security agents can automatically detect CVE-2021-24307 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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