by Kastro
Paper/Archive/CVE-2026-14812

CVE-2026-14812

Unknown Premium SEO — Premium SEO - Unauthenticated Backdoor (Admin Creation / RCE / SSRF / Content Injection)

EPSS 0.8%public exploitCVSS 10.0
critical.is priorityof 100
52
CVSS 10.0 (CNA)10.0 / 10 × 3030.0Not in CISA KEV+300.0EPSS percentile 57.6.576 × 2011.5Exploit: SSVC poc+1010.0SSVC exploitation: poc+100.0
Description · from the CVE record

The Premium SEO WordPress plugin is malicious: it ships an unauthenticated backdoor that creates a hidden administrator account and, in some builds, also enables remote code execution, server-side request forgery and arbitrary front-end script/content injection, giving an unauthenticated attacker full control of the affected site.

Affected

ProductAffectedFixed inSource
Premium SEO≤ *–CNA

Scores by source

WPScan (CNA)10.0CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CISA ADPSSVCExploitation: poc · Automatable: yes · Technical impact: total

References

exploitwpscan.com/vulnerability/0115a640-7139-4ef9-81be-6ee5c755a601