{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-3516", "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599", "state": "PUBLISHED", "assignerShortName": "Wordfence", "dateReserved": "2026-03-04T15:08:30.107Z", "datePublished": "2026-03-20T23:25:12.779Z", "dateUpdated": "2026-04-08T17:13:48.185Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599", "shortName": "Wordfence", "dateUpdated": "2026-04-08T17:13:48.185Z"}, "affected": [{"vendor": "anssilaitila", "product": "Contact List \u2013 Online Staff Directory & Address Book", "versions": [{"version": "0", "status": "affected", "lessThanOrEqual": "3.0.18", "versionType": "semver"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "The Contact List plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the '_cl_map_iframe' parameter in all versions up to, and including, 3.0.18. This is due to insufficient input sanitization and output escaping when handling the Google Maps iframe custom field. The saveCustomFields() function in class-contact-list-custom-fields.php uses a regex to extract <iframe> tags from user input but does not validate or sanitize the iframe's attributes, allowing event handlers like 'onload' to be included. The extracted iframe HTML is stored via update_post_meta() and later rendered on the front-end in class-cl-public-card.php without any escaping or wp_kses filtering. 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."}], "title": "Contact List <= 3.0.18 - Authenticated (Contributor+) Stored Cross-Site Scripting via '_cl_map_iframe' Parameter", "references": [{"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/a8059995-55cb-49ee-add1-f5364d0772eb?source=cve"}, {"url": "https://plugins.trac.wordpress.org/browser/contact-list/trunk/public/class-cl-public-card.php#L466"}, {"url": "https://plugins.trac.wordpress.org/browser/contact-list/tags/3.0.17/public/class-cl-public-card.php#L466"}, {"url": "https://plugins.trac.wordpress.org/browser/contact-list/trunk/includes/class-contact-list-custom-fields.php#L697"}, {"url": "https://plugins.trac.wordpress.org/browser/contact-list/tags/3.0.17/includes/class-contact-list-custom-fields.php#L697"}, {"url": "https://plugins.trac.wordpress.org/browser/contact-list/trunk/includes/class-contact-list-custom-fields.php#L675"}, {"url": "https://plugins.trac.wordpress.org/browser/contact-list/tags/3.0.17/includes/class-contact-list-custom-fields.php#L675"}, {"url": "https://plugins.trac.wordpress.org/changeset/3486445"}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')", "cweId": "CWE-79", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"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"}}], "credits": [{"lang": "en", "type": "finder", "value": "Tharadol Suksamran"}], "timeline": [{"time": "2026-03-10T19:29:26.000Z", "lang": "en", "value": "Vendor Notified"}, {"time": "2026-03-20T10:58:51.000Z", "lang": "en", "value": "Disclosed"}]}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-03-24T14:11:52.203596Z", "id": "CVE-2026-3516", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-03-24T14:11:59.760Z"}}]}}

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{"cveTags": [], "descriptions": [{"lang": "en", "value": "The Contact List plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the '_cl_map_iframe' parameter in all versions up to, and including, 3.0.18. This is due to insufficient input sanitization and output escaping when handling the Google Maps iframe custom field. The saveCustomFields() function in class-contact-list-custom-fields.php uses a regex to extract <iframe> tags from user input but does not validate or sanitize the iframe's attributes, allowing event handlers like 'onload' to be included. The extracted iframe HTML is stored via update_post_meta() and later rendered on the front-end in class-cl-public-card.php without any escaping or wp_kses filtering. 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 Contact List para WordPress es vulnerable a cross-site scripting almacenado a trav\u00e9s del par\u00e1metro '_cl_map_iframe' en todas las versiones hasta la 3.0.18, inclusive. Esto se debe a una sanitizaci\u00f3n de entrada y un escape de salida insuficientes al manejar el campo personalizado de iframe de Google Maps. La funci\u00f3n saveCustomFields() en class-contact-list-custom-fields.php utiliza una expresi\u00f3n regular para extraer etiquetas de la entrada del usuario, pero no valida ni sanitiza los atributos del iframe, permitiendo que se incluyan manejadores de eventos como onload. El HTML del iframe extra\u00eddo se almacena a trav\u00e9s de update_post_meta() y luego se renderiza en el front-end en class-cl-public-card.php sin ning\u00fan escape o filtrado wp_kses. Esto hace posible que atacantes autenticados, con acceso de nivel Colaborador o superior, inyecten scripts web arbitrarios en p\u00e1ginas que se ejecutar\u00e1n cada vez que un usuario acceda a una p\u00e1gina inyectada."}], "id": "CVE-2026-3516", "lastModified": "2026-04-22T21:32:08.360", "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"}]}, "published": "2026-03-21T00:16:28.387", "references": [{"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/contact-list/tags/3.0.17/includes/class-contact-list-custom-fields.php#L675"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/contact-list/tags/3.0.17/includes/class-contact-list-custom-fields.php#L697"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/contact-list/tags/3.0.17/public/class-cl-public-card.php#L466"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/contact-list/trunk/includes/class-contact-list-custom-fields.php#L675"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/contact-list/trunk/includes/class-contact-list-custom-fields.php#L697"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/contact-list/trunk/public/class-cl-public-card.php#L466"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/changeset/3486445"}, {"source": "security@wordfence.com", "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/a8059995-55cb-49ee-add1-f5364d0772eb?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": "[0,3.0.18]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "Contact List \u2013 Online Staff Directory & Address Book", "source": "cna", "vendor": "anssilaitila"}, "product": "contact_list_\u2013_online_staff_directory_&_address_book", "vendor": "anssilaitila"}, {"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": "2026-03-21T07:42:26.442812+00:00", "value": {"mitigation_remediation": ["Upgrade the Contact List plugin to a version newer than 3.0.18.", "Search the database for stored iframe meta values containing unescaped attributes and remove or sanitize them.", "Temporarily restrict Contributor or higher users from editing custom fields that can store iframe markup until the plugin has been upgraded.", "Regularly verify contact pages for unexpected JavaScript and monitor site logs for signs of unauthorized script injection."], "summary": {"action": "Apply Patch", "impact": "Stored Cross\u2011Site Scripting that can be performed by authenticated Contributor users, allowing arbitrary scripts on the front end."}, "threat_synthesis": {"affected_systems": "WordPress sites that have installed the Contact List \u2013 Online Staff Directory & Address Book plugin version 3.0.18 or earlier are affected. The vulnerability exists in all releases up to and including 3.0.18 across the plugin\u2019s author anssilaitila.", "description_and_impact": "The Contact List plugin for WordPress can store malicious JavaScript when an authenticated user with Contributor level or higher edits the _cl_map_iframe field. The plugin extracts an iframe tag but does not sanitize its attributes, and later displays the stored iframe unescaped. This flaw permits attackers to embed event handlers such as onload, enabling the execution of arbitrary scripts whenever a visitor loads a contact card, potentially enabling defacement, credential theft, or further XSS attacks.", "risk_and_exploitability": "The CVSS base score of 6.4 indicates moderate severity. Exploitation requires Contributor\u2011level or higher access within the WordPress dashboard, and occurs via the normal custom field editing interface. No EPSS score is available and the issue is not listed in the CISA KEV catalog. Because this is a stored XSS flaw, a compromised or malicious user can persistently inject code that runs for every visitor, affecting the entire front\u2011end and potentially compromising logged\u2011in sessions."}}}}, "created": "2026-03-23T09:51:37.706386+00:00", "updated": "2026-03-25T14:33:37.436513+00:00", "vendors": ["anssilaitila", "anssilaitila$PRODUCT$contact_list_\u2013_online_staff_directory_&_address_book", "wordpress", "wordpress$PRODUCT$wordpress"]}