CVE-2026-4120

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Info Cards \u2013 Add Text and Media in Card Layouts", "vendor": "bplugins", "versions": [{"lessThanOrEqual": "2.0.7", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "security@wordfence.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The Info Cards \u2013 Add Text and Media in Card Layouts plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'btnUrl' parameter within the Info Cards block in all versions up to, and including, 2.0.7. This is due to insufficient input validation on URL schemes, specifically the lack of javascript: protocol filtering. The block's render.php passes all attributes as JSON to the frontend via a data-attributes HTML attribute using esc_attr(wp_json_encode()), which prevents HTML attribute injection but does not validate URL protocols within the JSON data. The client-side view.js then renders the btnUrl value directly as an href attribute on anchor elements without any protocol sanitization. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject javascript: URLs that execute arbitrary web scripts when a user clicks the rendered button link."}, {"lang": "es", "value": "El plugin Info Cards \u2013 Add Text and Media in Card Layouts para WordPress es vulnerable a Cross-Site Scripting Almacenado a trav\u00e9s del par\u00e1metro 'btnUrl' dentro del bloque Info Cards en todas las versiones hasta, e incluyendo, la 2.0.7. Esto se debe a una validaci\u00f3n de entrada insuficiente en los esquemas de URL, espec\u00edficamente la falta de filtrado del protocolo javascript:. El render.php del bloque pasa todos los atributos como JSON al frontend a trav\u00e9s de un atributo HTML data-attributes usando esc_attr(wp_json_encode()), lo que previene la inyecci\u00f3n de atributos HTML pero no valida los protocolos de URL dentro de los datos JSON. El view.js del lado del cliente luego renderiza el valor de btnUrl directamente como un atributo href en elementos de anclaje sin ninguna sanitizaci\u00f3n de protocolo. Esto hace posible que atacantes autenticados, con acceso de nivel Colaborador y superior, inyecten URLs javascript: que ejecutan scripts web arbitrarios cuando un usuario hace clic en el enlace del bot\u00f3n renderizado."}], "id": "CVE-2026-4120", "lastModified": "2026-06-17T10:56:01.460", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 3.1, "impactScore": 2.7, "source": "security@wordfence.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-4120", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-03-20T15:16:40.756583Z", "version": "2.0.3"}}]}, "published": "2026-03-19T07:16:00.290", "references": [{"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/info-cards/tags/2.0.7/build/block.json#L35"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/info-cards/tags/2.0.7/build/render.php#L8"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/info-cards/tags/2.0.7/build/view.js#L2"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/info-cards/trunk/build/block.json#L35"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/info-cards/trunk/build/render.php#L8"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/info-cards/trunk/build/render.php?rev=3482902"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/info-cards/trunk/build/view.js#L2"}, {"source": "security@wordfence.com", "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/279984d9-f352-467f-a53d-814466d70326?source=cve"}], "sourceIdentifier": "security@wordfence.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "security@wordfence.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,2.0.7]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "Info Cards \u2013 Add Text and Media in Card Layouts", "source": "cna", "vendor": "bplugins"}, "product": "info_cards_\u2013_add_text_and_media_in_card_layouts", "vendor": "bplugins"}, {"configurations": [{"platform": null, "status": "unaffected", "versions": null}], "enrichment": {"confidence": 80.0, "confidence_source": "inferred", "scores": [{"score": 80.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "product": "wordpress", "vendor": "wordpress"}], "analysis": {"en": {"generated_at": "2026-03-19T08:22:32.391105+00:00", "value": {"mitigation_remediation": ["Immediately upgrade the Info Cards plugin to a version newer than 2.0.7", "If an upgrade is not feasible, restrict Contributor+ users from editing Info Cards blocks or disable the block entirely until a patch is available", "Verify that no existing stored javascript: URLs remain in the database and sanitize or remove them if found"], "summary": {"action": "Immediate Patch", "impact": "Stored Cross\u2011Site Scripting"}, "threat_synthesis": {"affected_systems": "The vulnerability affects the bplugins:Info Cards \u2013 Add Text and Media in Card Layouts WordPress plugin in all versions up to and including 2.0.7. No later version information is provided in the available data, so any instance running 2.0.7 or earlier is potentially exposed.", "description_and_impact": "The Info Cards \u2013 Add Text and Media in Card Layouts plugin for WordPress is vulnerable to Stored Cross\u2011Site Scripting. Attackers with authenticated Contributor-level or higher can inject a malicious javascript: URL into the btnUrl parameter of the block. When the block is rendered, the client\u2011side code inserts this value directly into an href attribute of an anchor element without protocol sanitization. As a result, legitimate users clicking the link will trigger arbitrary client\u2011side code in the victim\u2019s browser, leading to potential data theft, session hijacking, or site defacement. This weakness is classified as CWE\u201179.", "risk_and_exploitability": "The CVSS score of 6.4 indicates a moderate severity. The EPSS score is not provided, and the vulnerability is not listed in CISA\u2019s KEV catalog. Attackers must first authenticate with Contributor or higher privilege to edit the block; therefore the vector is local. Once the malicious URL is stored, it will affect all users who view the block, allowing the attacker to execute injected scripts in the context of the visible site. While the attack cannot be launched remotely without authentication, a compromised contributor account or social engineering of such an account can lead to widespread compromise within the site."}}}}, "created": "2026-03-19T08:54:31.294981+00:00", "updated": "2026-03-20T14:15:50.280668+00:00", "vendors": ["bplugins", "bplugins$PRODUCT$info_cards_\u2013_add_text_and_media_in_card_layouts", "wordpress", "wordpress$PRODUCT$wordpress"]}