SEO Flow by LupsOnline: A security weakness
SEO Flow by LupsOnline is affected by a security weakness. The vulnerable path is reachable without authentication. The resulting impact depends on how the affected component exposes the vulnerable operation.
- Component
- SEO Flow by LupsOnline
- Plugin slug
lupsonline-link-netwerk- Affected
- See vendor advisory
- Safe version
- See mitigation notes
- Published
- Feb 04, 2026
- Weakness
- CWE-862 — Missing Authorization
This CVE was published Feb 04, 2026 and is one of 1 known issue for this plugin.
Update, patch or deactivate.
Update SEO Flow by LupsOnline 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 SEO Flow by LupsOnline plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the checkBlogAuthentication() and checkCategoryAuthentication() functions in all versions up to, and including, 2.2.1. These authorization functions only implement basic API key authentication but fail to implement WordPress capability checks. This makes it possible for unauthenticated attackers to create, modify, and delete blog posts and categories.
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N