CVE-2026-1426

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Advanced AJAX Product Filters", "vendor": "berocket", "versions": [{"lessThanOrEqual": "3.1.9.6", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "security@wordfence.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The Advanced AJAX Product Filters plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 3.1.9.6 via deserialization of untrusted input in the shortcode_check function within the Live Composer compatibility layer. This makes it possible for authenticated attackers, with Author-level access and above, to inject a PHP Object. No known POP chain is present in the vulnerable software, which means this vulnerability has no impact unless another plugin or theme containing a POP chain is installed on the site. If a POP chain is present via an additional plugin or theme installed on the target system, it may allow the attacker to perform actions like delete arbitrary files, retrieve sensitive data, or execute code depending on the POP chain present. Note: This vulnerability requires the Live Composer plugin to also be installed and active."}, {"lang": "es", "value": "El plugin Advanced AJAX Product Filters para WordPress es vulnerable a la inyecci\u00f3n de objetos PHP en todas las versiones hasta la 3.1.9.6, inclusive, a trav\u00e9s de la deserializaci\u00f3n de entrada no confiable en la funci\u00f3n shortcode_check dentro de la capa de compatibilidad de Live Composer. Esto hace posible que atacantes autenticados, con acceso de nivel de Autor y superior, inyecten un objeto PHP. No hay una cadena POP conocida presente en el software vulnerable, lo que significa que esta vulnerabilidad no tiene impacto a menos que otro plugin o tema que contenga una cadena POP est\u00e9 instalado en el sitio. Si una cadena POP est\u00e1 presente a trav\u00e9s de un plugin o tema adicional instalado en el sistema objetivo, puede permitir al atacante realizar acciones como eliminar archivos arbitrarios, recuperar datos sensibles o ejecutar c\u00f3digo dependiendo de la cadena POP presente. Nota: Esta vulnerabilidad requiere que el plugin Live Composer tambi\u00e9n est\u00e9 instalado y activo."}], "id": "CVE-2026-1426", "lastModified": "2026-06-17T10:15:46.043", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "security@wordfence.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-1426", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-02-18T14:47:37.576681Z", "version": "2.0.3"}}]}, "published": "2026-02-18T15:18:41.023", "references": [{"source": "security@wordfence.com", "url": "https://cwe.mitre.org/data/definitions/502.html"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/woocommerce-ajax-filters/trunk/includes/compatibility/live_composer.php#L25"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/woocommerce-ajax-filters/trunk/includes/compatibility/live_composer.php#L28"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/woocommerce-ajax-filters/trunk/includes/compatibility/live_composer.php#L33"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/changeset/3449344/#file418"}, {"source": "security@wordfence.com", "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/29e76d57-217f-4f21-8bc6-a86290783a19?source=cve"}], "sourceIdentifier": "security@wordfence.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-502"}], "source": "security@wordfence.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,3.1.9.6]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Advanced AJAX Product Filters", "source": "cna", "vendor": "berocket"}, "product": "advanced_ajax_product_filters", "vendor": "berocket"}, {"configurations": [{"platform": null, "status": "unaffected", "versions": null}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "product": "wordpress", "vendor": "wordpress"}], "analysis": {"en": {"generated_at": "2026-04-15T20:20:15.210578+00:00", "value": {"mitigation_remediation": ["Update Advanced AJAX Product Filters to the latest version (3.1.9.7 or newer).", "If the Live Composer plugin is not required, disable or uninstall it to eliminate the required component for the injection.", "Audit other plugins and themes for known Pop chains and patch or remove any that could be exploited."], "summary": {"action": "Apply Patch", "impact": "Potential Remote Code Execution via PHP Object Injection"}, "threat_synthesis": {"affected_systems": "WordPress sites running Advanced AJAX Product Filters version 3.1.9.6 or older and with the Live Composer plugin installed. The attacker must also possess Author-level or higher permissions on the WordPress site. No specific WordPress core versions are affected by the code change.", "description_and_impact": "The Advanced AJAX Product Filters plugin contains a PHP Object Injection flaw in its Live Composer compatibility layer. The deserialization routine accepts untrusted data from the shortcode_check function, allowing an attacker with Author or higher privileges to inject a crafted PHP object. Although the plugin itself has no known vulnerable object payloads, once combined with another plugin or theme that supplies a vulnerable object (a POP chain), the attacker could delete files, read sensitive data, or execute arbitrary code. Therefore the flaw is meaningful only in environments that also host a POP-capable plugin or theme.", "risk_and_exploitability": "The vulnerability scores a CVSS of 8.8, indicating high severity, but its EPSS is less than 1%, suggesting exploitation is unlikely at present. It is not listed in the CISA KEV catalog. The attack vector requires authenticated access at Author level, so a site with many such users expands the risk surface. The risk to confidentiality, integrity, and availability becomes significant only when a POP chain resides on the same installation. Without such a chain, the flaw alone does not allow code execution or privilege escalation."}}}}, "created": "2026-02-19T10:19:34.819661+00:00", "updated": "2026-04-15T20:30:13.772338+00:00", "vendors": ["berocket", "berocket$PRODUCT$advanced_ajax_product_filters", "wordpress", "wordpress$PRODUCT$wordpress"]}