CVE-2026-124003 json
Dixell/Copeland XWEB Setuid Lua CGI Root Command Injection
published 2d ago modified yesterday also EUVD-2026-124637
- cvss
- 7.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.7%
- EPSS 0.7% chance of exploitation in 30 days, percentile 53%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
Is CVE-2026-124003 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 2d ago
Exploit prediction
0.69% chance of exploitation in the next 30 days, higher than 53% of all scored CVEs (FIRST EPSS, 2026-11-14).
Exploits and checks
- vulncheck.com https://www.vulncheck.com/blog/copeland-xweb-evo-unauthenticated-root referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 8.5 | 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 |
| CNA | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| CNA | 4.0 | 8.5 | 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Affected products
- Copeland XWEB EVO
Classification
- Weakness
-
- CWE-250 Execution with Unnecessary Privileges
References
-
webapps.copeland.com
/Dixell/Pages/SystemSoftwareUpdate
patch, product
-
vulncheck.com
/blog/copeland-xweb-evo-unauthenticated-root
technical-description, exploit
-
webapps.copeland.com
/dixell/Content/Pages/AdvertisingMaterials/ProductNews/XWEB%20EVO%20EoS%20-%20Product_Bulletin_March_2026.pdf
vendor-advisory
-
vulncheck.com
/advisories/dixell-copeland-xweb-evo-setuid-lua-cgi-root-command-injection
third-party-advisory
Sources
- CVE List CVE-2026-124003
- NVD CVE-2026-124003
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.