CVE-2026-63722Public exploitNetwork attack vector

Unauthenticated command execution via terminal proc_open

Published Aug 19, 2026 · Updated Aug 20, 2026

OS command injection in terminal-xhr.php in ICEcoder 8.1 allows remote attackers to execute arbitrary OS commands via POST requests. The terminal endpoint passes the command parameter directly to proc_open(), while lib/settings.php skips the login die() whenever any password parameter is present and lib/headers.php only enforces CSRF validation when csrf is absent or empty. No credentials or user interaction are required beyond network reachability to the web IDE, and code runs as the web-server user.

CVSS severity9.8
Critical
EPSS probability0.98%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in terminal-xhr.php in ICEcoder 8.1 allows remote attackers to execute arbitrary OS commands via POST requests. The terminal endpoint passes the command parameter directly to proc_open(), while lib/settings.php skips the login die() whenever any password parameter is present and lib/headers.php only enforces CSRF validation when csrf is absent or empty. No credentials or user interaction are required beyond network reachability to the web IDE, and code runs as the web-server user.

The record

CVE
CVE-2026-63722
Published
Aug 19, 2026
Updated
Aug 20, 2026
Vendor
ICEcoder
Product
ICEcoder
Classifications
CWE-306, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 19, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 20, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <8.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

ICEcoder · ICEcoderversion=0 <8.1

Published CVSS scores

8.7VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
9.8VulnCheckCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-306Missing Authentication for Critical Function
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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