Slim SEO exposes a contributor-level object reference
Slim SEO through 4.10.0 has an insecure direct object reference reachable by an authenticated Contributor. The CNA vector requires no user interaction and rates confidentiality impact as low. The authoritative export does not identify the endpoint, action, object identifier, protected object, or data disclosed.
- Component
- Slim SEO
- Plugin slug
slim-seo- Affected
- n/a through 4.10.0
- Safe version
4.10.1- Published
- Sep 11, 2026
This CVE was published Sep 11, 2026 and is one of 6 known issues for this plugin.
Update, patch or deactivate.
Update Slim SEO to 4.10.1 or later. The authoritative affected data explicitly marks 4.10.1 unaffected. The application-level fix must verify the caller's permission for the specific requested object rather than relying on a broad role check or supplied identifier.
A safe version is available, so updating to that version or later is the preferred remediation. If an immediate update is not practical, consider a targeted application patch or temporarily restricting the affected functionality.
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
Contributor Insecure Direct Object References (IDOR) in Slim SEO <= 4.10.0 versions.
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N