Description
XWEB EVO before 5.6.2 contains a command injection vulnerability where the setuid-root Lua CGI interpreter wlua executes system("/usr/bin/lua "+argv) on unsanitized input. Attackers can craft malicious input reached through a .lua CGI endpoint to inject arbitrary commands into the concatenated argv string, achieving command execution with root privileges. This product line reached it's end of service date in March 2026.
Published: 2026-11-12
Score: 8.5 High
EPSS: n/a
KEV: No
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Remediation

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Advisories

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History

Thu, 12 Nov 2026 19:45:00 +0000

Type Values Removed Values Added
Description XWEB EVO before 5.6.2 contains a command injection vulnerability where the setuid-root Lua CGI interpreter wlua executes system("/usr/bin/lua "+argv) on unsanitized input. Attackers can craft malicious input reached through a .lua CGI endpoint to inject arbitrary commands into the concatenated argv string, achieving command execution with root privileges. This product line reached it's end of service date in March 2026.
Title Dixell/Copeland XWEB Setuid Lua CGI Root Command Injection
Weaknesses CWE-250
References
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 8.5, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Subscriptions

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-11-12T19:40:00.629Z

Reserved: 2026-11-06T18:38:38.543Z

Link: CVE-2026-124003

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-11-12T20:18:21.917

Modified: 2026-11-12T20:18:21.917

Link: CVE-2026-124003

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

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Weaknesses