CVE-2026-4127

{"id": "CVE-2026-4127", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "security@wordfence.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 1.4, "exploitabilityScore": 2.8}]}, "published": "2026-03-21T04:17:41.393", "references": [{"url": "https://plugins.trac.wordpress.org/browser/speedup-optimization/tags/1.5.9/speedup-optimization.php#L172", "source": "security@wordfence.com"}, {"url": "https://plugins.trac.wordpress.org/browser/speedup-optimization/tags/1.5.9/speedup-optimization.php#L178", "source": "security@wordfence.com"}, {"url": "https://plugins.trac.wordpress.org/browser/speedup-optimization/trunk/speedup-optimization.php#L172", "source": "security@wordfence.com"}, {"url": "https://plugins.trac.wordpress.org/browser/speedup-optimization/trunk/speedup-optimization.php#L178", "source": "security@wordfence.com"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/3f37c650-af0d-4474-9c1b-7f8d361b4d81?source=cve", "source": "security@wordfence.com"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "security@wordfence.com", "description": [{"lang": "en", "value": "CWE-862"}]}], "descriptions": [{"lang": "en", "value": "The Speedup Optimization plugin for WordPress is vulnerable to Missing Authorization in all versions up to and including 1.5.9. The `speedup01_ajax_enabled()` function, which handles the `wp_ajax_speedup01_enabled` AJAX action, does not perform any capability check via `current_user_can()` and also lacks nonce verification. This is in contrast to other AJAX handlers in the same plugin (e.g., `speedup01_ajax_install_iox` and `speedup01_ajax_delete_cache_file`) which properly check for `install_plugins` and `manage_options` capabilities respectively. This makes it possible for authenticated attackers, with Subscriber-level access and above, to enable or disable the site's optimization module by sending a POST request to admin-ajax."}, {"lang": "es", "value": "El plugin Speedup Optimization para WordPress es vulnerable a la falta de autorizaci\u00f3n en todas las versiones hasta la 1.5.9 inclusive. La funci\u00f3n speedup01_ajax_enabled(), que maneja la acci\u00f3n AJAX wp_ajax_speedup01_enabled, no realiza ninguna comprobaci\u00f3n de capacidad a trav\u00e9s de current_user_can() y tambi\u00e9n carece de verificaci\u00f3n de nonce. Esto contrasta con otros manejadores AJAX en el mismo plugin (por ejemplo, speedup01_ajax_install_iox y speedup01_ajax_delete_cache_file) que comprueban correctamente las capacidades install_plugins y manage_options respectivamente. Esto hace posible que atacantes autenticados, con acceso de nivel Suscriptor y superior, habiliten o deshabiliten el m\u00f3dulo de optimizaci\u00f3n del sitio enviando una solicitud POST a admin-ajax."}], "lastModified": "2026-04-24T16:27:44.277", "sourceIdentifier": "security@wordfence.com"}