CVE-2026-18027

{"id": "CVE-2026-18027", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-18027", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-08-24T12:37:46.250703Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security@wordfence.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 3.6, "exploitabilityScore": 2.8}]}, "affected": [{"source": "security@wordfence.com", "affectedData": [{"vendor": "webtoffee", "product": "WebToffee WooCommerce PDF Invoices, Packing Slips, Delivery Notes & Shipping Labels", "versions": [{"status": "affected", "version": "0", "versionType": "semver", "lessThanOrEqual": "4.9.8"}], "defaultStatus": "unaffected"}]}], "published": "2026-08-23T00:16:50.370", "references": [{"url": "https://plugins.trac.wordpress.org/browser/print-invoices-packing-slip-labels-for-woocommerce/tags/4.9.8/admin/modules/customizer/classes/class-customizer.php#L1453", "source": "security@wordfence.com"}, {"url": "https://plugins.trac.wordpress.org/browser/print-invoices-packing-slip-labels-for-woocommerce/tags/4.9.8/admin/modules/customizer/customizer.php#L1561", "source": "security@wordfence.com"}, {"url": "https://plugins.trac.wordpress.org/browser/print-invoices-packing-slip-labels-for-woocommerce/tags/4.9.8/admin/modules/customizer/customizer.php#L1607", "source": "security@wordfence.com"}, {"url": "https://plugins.trac.wordpress.org/browser/print-invoices-packing-slip-labels-for-woocommerce/tags/4.9.8/public/modules/invoice/invoice.php#L1934", "source": "security@wordfence.com"}, {"url": "https://plugins.trac.wordpress.org/changeset/3646629/print-invoices-packing-slip-labels-for-woocommerce", "source": "security@wordfence.com"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/a46f270f-d9cb-4bc1-8e10-3fc6646e1d78?source=cve", "source": "security@wordfence.com"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "security@wordfence.com", "description": [{"lang": "en", "value": "CWE-22"}]}], "descriptions": [{"lang": "en", "value": "The WebToffee WooCommerce PDF Invoices, Packing Slips, Delivery Notes & Shipping Labels plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 4.9.8 via the get_image_src_in_base64 function. This makes it possible for authenticated attackers, with subscriber-level access and above, to read the contents of arbitrary files on the server, which can contain sensitive information. The base64-encoded file contents are embedded into the cached invoice HTML and served directly to the attacker via the plugin's own Print/Download invoice endpoints, which require only a valid nonce and access key."}, {"lang": "es", "value": "El plugin WebToffee WooCommerce PDF Invoices, Packing Slips, Delivery Notes & Shipping Labels para WordPress es vulnerable a salto de directorio en todas las versiones hasta la 4.9.8, inclusive, a trav\u00e9s de la funci\u00f3n get_image_src_in_base64. Esto hace posible que atacantes autenticados, con acceso de nivel de suscriptor y superior, lean el contenido de archivos arbitrarios en el servidor, que pueden contener informaci\u00f3n sensible. El contenido del archivo codificado en base64 se incrusta en el HTML de la factura en cach\u00e9 y se entrega directamente al atacante a trav\u00e9s de los propios puntos finales de impresi\u00f3n/descarga de facturas del plugin, que solo requieren un nonce y una clave de acceso v\u00e1lidos."}], "lastModified": "2026-10-12T16:10:00.220", "sourceIdentifier": "security@wordfence.com"}