Auth bypass in Icecoder
CVE-2026-63722
ICEcoder 8.1 contains an unauthenticated remote code execution vulnerability that allows unauthenticated attackers to execute arbitrary OS commands by chaining an authentication bypass, CSRF validation bypass, and unsanitized command execution. Attackers can send a single HTTP POST request to the terminal endpoint with a password parameter to bypass authentication, a non-empty csrf parameter to skip CSRF validation, and an arbitrary command string passed directly to proc_open() to achieve remote code execution as the web-server user.
Vulnerability class: Broken Authentication
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: 0.013 (70.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 70th percentile — 70.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.010 · newest: 0.013 · change: +0.003
Affected products
Weakness classification (CWE)
References
- github.com/icecoder/ICEcoder (product)
- www.vulncheck.com/advisories/icecoder-unauthenticated-rce-via-terminal-xhr-php (third-party-advisory)
- gist.github.com/axg11/fc2b86648d8f385b51f4576ff0f392d8 (technical-description)
Frequently asked questions
- What is CVE-2026-63722?
- CVE-2026-63722 is a critical-severity vulnerability in Icecoder, classified under Missing Authentication for Critical Function. CVSS score: 9.8/10. Published 2026-08-19.
- How severe is CVE-2026-63722?
- Critical severity. CVSS v3 base score is 9.8 out of 10.