SiteSEO – SEO Simplified: A security weakness
SiteSEO – SEO Simplified is affected by a security weakness. Exploitation requires at least author-level access. The resulting impact depends on how the affected component exposes the vulnerable operation.
- Component
- SiteSEO – SEO Simplified
- Plugin slug
siteseo- Affected
- See vendor advisory
- Safe version
- See mitigation notes
- Published
- Nov 01, 2025
- Weakness
- CWE-285 — Improper Authorization
This CVE was published Nov 01, 2025 and is one of 4 known issues for this plugin.
Update, patch or deactivate.
Update SiteSEO – SEO Simplified to a release outside the affected range, or disable and remove it until a fixed version is available.
No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.
Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.
Technical description
The SiteSEO – SEO Simplified plugin for WordPress is vulnerable to Missing Authorization in versions up to, and including, 1.3.1. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with Author-level access and above, to enable or disable arbitrary SiteSEO features that they should not have access to.
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N