{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-3347", "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599", "state": "PUBLISHED", "assignerShortName": "Wordfence", "dateReserved": "2026-02-27T16:20:45.950Z", "datePublished": "2026-03-21T03:26:57.846Z", "dateUpdated": "2026-04-08T17:13:08.284Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599", "shortName": "Wordfence", "dateUpdated": "2026-04-08T17:13:08.284Z"}, "affected": [{"vendor": "arevico", "product": "Multi Functional Flexi Lightbox", "versions": [{"version": "0", "status": "affected", "lessThanOrEqual": "1.2", "versionType": "semver"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "The Multi Functional Flexi Lightbox plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the `arv_lb[message]` parameter in all versions up to, and including, 1.2 due to insufficient input sanitization and output escaping. This is due to the `arv_lb_options_val()` sanitize callback returning user input without any sanitization, and the stored `message` value being output in the `genLB()` function without escaping. This makes it possible for authenticated attackers, with Administrator-level access, to inject arbitrary web scripts in pages that will execute whenever a user accesses a page or post with the lightbox enabled."}], "title": "Multi Functional Flexi Lightbox <= 1.2 - Authenticated (Admin+) Stored Cross-Site Scripting via 'message' Parameter", "references": [{"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/a4c0b14a-d039-4008-a433-ab3605e2612c?source=cve"}, {"url": "https://plugins.trac.wordpress.org/browser/multi-functional-flexi-lightbox/tags/1.2/sp.php#L37"}, {"url": "https://plugins.trac.wordpress.org/browser/multi-functional-flexi-lightbox/tags/1.2/options.php#L94"}, {"url": "https://plugins.trac.wordpress.org/browser/multi-functional-flexi-lightbox/trunk/sp.php#L37"}, {"url": "https://plugins.trac.wordpress.org/browser/multi-functional-flexi-lightbox/trunk/options.php#L94"}], "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:H/UI:N/S:C/C:L/I:L/A:N", "baseScore": 5.5, "baseSeverity": "MEDIUM"}}], "credits": [{"lang": "en", "type": "finder", "value": "san6051"}], "timeline": [{"time": "2026-03-20T15:13:42.000Z", "lang": "en", "value": "Disclosed"}]}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-03-24T13:54:45.424292Z", "id": "CVE-2026-3347", "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": "2026-03-24T13:54:57.501Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-3347", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-03-24T13:54:45.424292Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-03-24T13:54:53.496Z"}}], "cna": {"title": "Multi Functional Flexi Lightbox <= 1.2 - Authenticated (Admin+) Stored Cross-Site Scripting via 'message' Parameter", "credits": [{"lang": "en", "type": "finder", "value": "san6051"}], "metrics": [{"cvssV3_1": {"version": "3.1", "baseScore": 5.5, "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N"}}], "affected": [{"vendor": "arevico", "product": "Multi Functional Flexi Lightbox", "versions": [{"status": "affected", "version": "0", "versionType": "semver", "lessThanOrEqual": "1.2"}], "defaultStatus": "unaffected"}], "timeline": [{"lang": "en", "time": "2026-03-20T15:13:42.000Z", "value": "Disclosed"}], "references": [{"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/a4c0b14a-d039-4008-a433-ab3605e2612c?source=cve"}, {"url": "https://plugins.trac.wordpress.org/browser/multi-functional-flexi-lightbox/tags/1.2/sp.php#L37"}, {"url": "https://plugins.trac.wordpress.org/browser/multi-functional-flexi-lightbox/tags/1.2/options.php#L94"}, {"url": "https://plugins.trac.wordpress.org/browser/multi-functional-flexi-lightbox/trunk/sp.php#L37"}, {"url": "https://plugins.trac.wordpress.org/browser/multi-functional-flexi-lightbox/trunk/options.php#L94"}], "descriptions": [{"lang": "en", "value": "The Multi Functional Flexi Lightbox plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the `arv_lb[message]` parameter in all versions up to, and including, 1.2 due to insufficient input sanitization and output escaping. This is due to the `arv_lb_options_val()` sanitize callback returning user input without any sanitization, and the stored `message` value being output in the `genLB()` function without escaping. This makes it possible for authenticated attackers, with Administrator-level access, to inject arbitrary web scripts in pages that will execute whenever a user accesses a page or post with the lightbox enabled."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-79", "description": "CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')"}]}], "providerMetadata": {"orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599", "shortName": "Wordfence", "dateUpdated": "2026-04-08T17:13:08.284Z"}}}, "cveMetadata": {"cveId": "CVE-2026-3347", "state": "PUBLISHED", "dateUpdated": "2026-04-08T17:13:08.284Z", "dateReserved": "2026-02-27T16:20:45.950Z", "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599", "datePublished": "2026-03-21T03:26:57.846Z", "assignerShortName": "Wordfence"}, "dataVersion": "5.2"}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "The Multi Functional Flexi Lightbox plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the `arv_lb[message]` parameter in all versions up to, and including, 1.2 due to insufficient input sanitization and output escaping. This is due to the `arv_lb_options_val()` sanitize callback returning user input without any sanitization, and the stored `message` value being output in the `genLB()` function without escaping. This makes it possible for authenticated attackers, with Administrator-level access, to inject arbitrary web scripts in pages that will execute whenever a user accesses a page or post with the lightbox enabled."}, {"lang": "es", "value": "El plugin Multi Functional Flexi Lightbox para WordPress es vulnerable a cross-site scripting almacenado a trav\u00e9s del par\u00e1metro `arv_lb[message]` en todas las versiones hasta la 1.2, inclusive, debido a una sanitizaci\u00f3n de entrada y un escape de salida insuficientes. Esto se debe a que la funci\u00f3n de callback de sanitizaci\u00f3n `arv_lb_options_val()` devuelve la entrada del usuario sin ninguna sanitizaci\u00f3n, y el valor `message` almacenado se muestra en la funci\u00f3n `genLB()` sin escape. Esto hace posible que atacantes autenticados, con acceso de nivel de Administrador, inyecten scripts web arbitrarios en p\u00e1ginas que se ejecutar\u00e1n cada vez que un usuario acceda a una p\u00e1gina o entrada con el lightbox habilitado."}], "id": "CVE-2026-3347", "lastModified": "2026-04-24T16:27:44.277", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "HIGH", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.3, "impactScore": 2.7, "source": "security@wordfence.com", "type": "Secondary"}]}, "published": "2026-03-21T04:17:21.730", "references": [{"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/multi-functional-flexi-lightbox/tags/1.2/options.php#L94"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/multi-functional-flexi-lightbox/tags/1.2/sp.php#L37"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/multi-functional-flexi-lightbox/trunk/options.php#L94"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/multi-functional-flexi-lightbox/trunk/sp.php#L37"}, {"source": "security@wordfence.com", "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/a4c0b14a-d039-4008-a433-ab3605e2612c?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": "[0,1.2]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "Multi Functional Flexi Lightbox", "source": "cna", "vendor": "arevico"}, "product": "multi_functional_flexi_lightbox", "vendor": "arevico"}, {"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": "2026-03-21T07:13:59.348298+00:00", "value": {"mitigation_remediation": ["Update the Multi Functional Flexi Lightbox plugin to a version newer than 1.2 where the message parameter is properly sanitized and escaped.", "If an update cannot be applied immediately, disable the plugin or remove the lightbox functionality from public pages to prevent script execution.", "Verify that no malicious code remains in the message field by inspecting stored options or using a search for common XSS payloads.", "Implement a Content Security Policy (CSP) that restricts script execution to trusted sources to mitigate potential future XSS attacks.", "Monitor site logs for unusual activity following the remediation to ensure no residual impact."], "summary": {"action": "Immediate Patch", "impact": "Stored Cross\u2011Site Scripting via the plugin's message parameter"}, "threat_synthesis": {"affected_systems": "The issue affects all installations of the arevico Multi Functional Flexi Lightbox WordPress plugin with version 1.2 or earlier. Any site that has installed or enabled this plugin is susceptible until it is updated or removed.", "description_and_impact": "The vulnerability allows an administrator to inject arbitrary JavaScript into the message field of the Multi Functional Flexi Lightbox plugin. When a page or post includes the lightbox, the unsanitized message is rendered, causing the injected script to execute in visitors' browsers. This can lead to credential theft, session hijacking, defacement, or other malicious actions against users of the affected WordPress site.", "risk_and_exploitability": "The CVSS base score of 5.5 indicates moderate severity, and the vulnerability is not listed in the KEV catalog. Exploitation requires authenticated Administrator access to the WordPress dashboard, so the attack vector is mainly local, but once scripted code is stored it can propagate to all visitors of lightbox pages. Because the exploit can be performed by site admins, the risk to site owners and their users is significant, especially for sites with sensitive information or high traffic."}}}}, "created": "2026-03-23T09:50:09.531877+00:00", "updated": "2026-03-25T14:41:50.317674+00:00", "vendors": ["arevico", "arevico$PRODUCT$multi_functional_flexi_lightbox", "wordpress", "wordpress$PRODUCT$wordpress"]}