CVE-2024-3368: All in One SEO < 4.6.1.1 - Contributor+ Stored XSS

Severity: medium (CVSS 6.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2024-05-20 · updated 2026-06-17
Weakness: CWE-79

Description

The All in One SEO WordPress plugin before 4.6.1.1 does not validate and escape some of its Post fields before outputting them back, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks

Affected products

smub All in One SEO – Powerful SEO Plugin to Boost SEO Rankings & Increase Traffic: before 4.6.1.1 — fixed in 4.6.1.1

How to fix

Upgrade to a fixed version: smub All in One SEO – Powerful SEO Plugin to Boost SEO Rankings & Increase Traffic 4.6.1.1. Check the vendor advisory for mitigations.

References

https://wpscan.com/vulnerability/ab78b1a5-e28c-406b-baaf-6d53017f9328/
https://wpscan.com/vulnerability/ab78b1a5-e28c-406b-baaf-6d53017f9328/

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