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CVE-2025-8723

CriticalPublished

Cloudflare Image Resizing <= 1.5.6 - Missing Authentication to Unauthenticated Remote Code Execution via rest_pre_dispatch Hook

Published: Aug 19, 2025
Updated: Apr 8, 2026
Assigning CNA: Wordfence
Evidence observed: Aug 17, 2026

Primary CVSS

9.8/ 10Critical

nvd · CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS probability estimate

15.4%

Moderate · next 30 days

Percentile: 96.7%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

The Cloudflare Image Resizing plugin for WordPress is vulnerable to Remote Code Execution due to missing authentication and insufficient sanitization within its hook_rest_pre_dispatch() method in all versions up to, and including, 1.5.6. This makes it possible for unauthenticated attackers to inject arbitrary PHP into the codebase, achieving remote code execution.

Sources

CVE-2025-8723Exploit
Cloudflare Image Resizing <= 1.5.6 | Unauthenticated Remote Code Execution

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