FKIE_CVE-2026-1426
Vulnerability from fkie_nvd - Published: 2026-02-18 15:18 - Updated: 2026-04-15 00:35
Severity ?
Summary
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.
References
Impacted products
| Vendor | Product | Version |
|---|
{
"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": "2026-04-15T00:35:42.020",
"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"
}
]
},
"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"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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