CVE-2026-124007
Dixell/Copeland XWEB EVO Pre-Auth OS Command Injection via Password Field
- Critical 9.2
- A public exploit reference is listed
Description
XWEB EVO before 5.6.2 contains a pre-authentication OS command injection vulnerability that allows unauthenticated remote attackers to execute arbitrary commands by injecting shell metacharacters into the password field. Attackers can exploit the unescaped interpolation of the password value into the hashpass invocation within login.lua, cleanout.lua, and api.lua to achieve root-level command execution via the setuid wlua interpreter. This product line reached it's end of service date in March 2026.
Key facts
- Published
- 12 Nov 2026
- Last changed
- 13 Nov 2026
- Assigned by
- VulnCheck
- EPSS
- 2.119% likely to be exploited in the next 30 days, higher than 82.164% of CVEs (scores for 15 Nov 2026)
- SSVC (CISA)
- Exploitation: none; Automatable: no; Technical impact: total
Severity scores
Each score is shown as its source gave it. They are not averaged or merged.
- 9.2CVSS 4.0, Criticalfrom the CNA (VulnCheck)
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N - 8.1CVSS 3.1, Highfrom the CNA (VulnCheck)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Historical context and remediation
This reference retains the original CVE publication date. A recent record update does not mean a new attack occurred.
No separately sourced impact summary is available on this page yet. Consult the description, version data and dated exploitation evidence.
No explicit remediation statement is available on this page yet. Consult the original record and vendor references before choosing a fix.
Version statuses below come from the CNA. An “unaffected” version is not necessarily a currently supported release or proof of a patch date. EPSS is a dated risk estimate, not a count of historical attacks.
Affected products
| Vendor | Product | Versions |
|---|---|---|
| Copeland | XWEB EVO |
|
Timeline
- 19 Oct 2026 VulnCheck CVD team reported to Copeland PSIRT
- 19 Oct 2026 Copeland PSIRT acknowledged receipt
- 5 Nov 2026 Copeland PSIRT follows up stating that given the EOS status, they will not be carrying out a comparative analysis against previously disclosed vulnerabilities
- 12 Nov 2026 Published
Weakness
Practice this bug class
HackZoneLabs has a hands-on lab on OS command injection (CWE-78).