RCE in Mecanik Cloudflare Image Resizing – Optimize & Accelerate Your Images
CVE-2025-8723
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.
Vulnerability class: RCE (Remote Code Execution)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.176 (97.1th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 97th percentile — 97.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.147 · newest: 0.176 · change: +0.028
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
Frequently asked questions
- What is CVE-2025-8723?
- CVE-2025-8723 is a critical-severity vulnerability in Mecanik Cloudflare Image Resizing – Optimize & Accelerate Your Images, classified under Code Injection. CVSS score: 9.8/10. Published 2025-08-19.
- How severe is CVE-2025-8723?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2025-8723 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.