Auth bypass in Anton Vanyukov Offload, Ai & Optimize With Cloudflare Images

CVE-2025-66104

Missing Authorization vulnerability in Anton Vanyukov Offload, AI & Optimize with Cloudflare Images cf-images allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Offload, AI & Optimize with Cloudflare Images: from n/a through <= 1.9.5.

Vulnerability class: Broken Access Control

Published · last modified .

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.003 (14.7th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 15th percentile — 14.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2025-66104: held from 0.002 to 0.003.

EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.000

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-66104?
CVE-2025-66104 is a medium-severity vulnerability in Anton Vanyukov Offload, Ai & Optimize With Cloudflare Images, classified under Missing Authorization. CVSS score: 6.5/10. Published 2025-12-18.
How severe is CVE-2025-66104?
Medium severity. CVSS v3 base score is 6.5 out of 10.