What is CVE-2021-24307?

CVE-2021-24307 is a high-severity vulnerability in Aioseo All_in_one_seo, classified under Deserialization of Untrusted Data. CVSS score: 8.8/10. Published 2021-05-24.

How severe is CVE-2021-24307?

High severity. CVSS v3 base score is 8.8 out of 10.

Is CVE-2021-24307 known to be exploited?

15 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Deserialization in Aioseo All_in_one_seo

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…

Vulnerability class: Insecure Deserialization

EPSS: 0.533 (98.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Aioseo All_in_one_seo
All In One Seo Team – Best Wordpress Plugin Easily Improve Your Rankings — versions 4.1.0.2

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

Public proof-of-concept exploits

References

contact@wpscan.com (x_refsource_CONFIRM, Exploit, Third Party Advisory)
contact@wpscan.com (x_refsource_MISC, Release Notes, Vendor Advisory)

Frequently asked questions

What is CVE-2021-24307?: CVE-2021-24307 is a high-severity vulnerability in Aioseo All_in_one_seo, classified under Deserialization of Untrusted Data. CVSS score: 8.8/10. Published 2021-05-24.
How severe is CVE-2021-24307?: High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2021-24307 known to be exploited?: 15 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.