CVE-2026-4302

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "WowOptin: Next-Gen Popup Maker \u2013 Create Stunning Popups and Optins for Lead Generation", "vendor": "wpxpo", "versions": [{"lessThanOrEqual": "1.4.29", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "security@wordfence.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The WowOptin: Next-Gen Popup Maker plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 1.4.29. This is due to the plugin exposing a publicly accessible REST API endpoint (optn/v1/integration-action) with a permission_callback of __return_true that passes user-supplied URLs directly to wp_remote_get() and wp_remote_post() in the Webhook::add_subscriber() method without any URL validation or restriction. The plugin does not use wp_safe_remote_get/post which provide built-in SSRF protection. This makes it possible for unauthenticated attackers to make web requests to arbitrary locations originating from the web application, which can be used to query and modify information from internal services."}, {"lang": "es", "value": "El plugin WowOptin: Next-Gen Popup Maker para WordPress es vulnerable a falsificaci\u00f3n de petici\u00f3n del lado del servidor en todas las versiones hasta la 1.4.29, inclusive. Esto se debe a que el plugin expone un endpoint de API REST de acceso p\u00fablico (optn/v1/integration-action) con un permission_callback de __return_true que pasa URLs proporcionadas por el usuario directamente a wp_remote_get() y wp_remote_post() en el m\u00e9todo Webhook::add_subscriber() sin ninguna validaci\u00f3n o restricci\u00f3n de URL. El plugin no utiliza wp_safe_remote_get/post que proporcionan protecci\u00f3n SSRF incorporada. Esto hace posible que atacantes no autenticados realicen peticiones web a ubicaciones arbitrarias originadas desde la aplicaci\u00f3n web, lo que puede usarse para consultar y modificar informaci\u00f3n de servicios internos."}], "id": "CVE-2026-4302", "lastModified": "2026-06-17T10:56:23.307", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.2, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 2.7, "source": "security@wordfence.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-4302", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-03-23T16:37:23.495498Z", "version": "2.0.3"}}]}, "published": "2026-03-21T02:16:18.260", "references": [{"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/optin/tags/1.4.23/frontend/class-rest-frontend.php#L44"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/optin/tags/1.4.23/frontend/class-rest-frontend.php#L55"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/optin/tags/1.4.23/includes/integrations/implementations/class-webhook.php#L38"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/optin/tags/1.4.23/includes/integrations/implementations/class-webhook.php#L45"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/optin/trunk/frontend/class-rest-frontend.php#L44"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/optin/trunk/frontend/class-rest-frontend.php#L55"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/optin/trunk/includes/integrations/implementations/class-webhook.php#L38"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/optin/trunk/includes/integrations/implementations/class-webhook.php#L45"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3484392%40optin&new=3484392%40optin&sfp_email=&sfph_mail="}, {"source": "security@wordfence.com", "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/b1c3e480-0221-4913-bcce-f34ded9edca8?source=cve"}], "sourceIdentifier": "security@wordfence.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-918"}], "source": "security@wordfence.com", "type": "Secondary"}]}

{}

{"affected": [{"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"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,1.4.29]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "WowOptin: Next-Gen Popup Maker \u2013 Create Stunning Popups and Optins for Lead Generation", "source": "cna", "vendor": "wpxpo"}, "product": "wowoptin:_next-gen_popup_maker_\u2013_create_stunning_popups_and_optins_for_lead_generation", "vendor": "wpxpo"}], "analysis": {"en": {"generated_at": "2026-03-21T07:22:57.467462+00:00", "value": {"mitigation_remediation": ["Update WowOptin to the latest release that removes the SSRF flaw.", "Verify that the /optn/v1/integration\u2011action REST endpoint is no longer publicly accessible and that proper permission checks are in place.", "If an upgrade is not feasible, disable or uninstall the plugin, or block the vulnerable endpoint using a web application firewall or host\u2011level rules."], "summary": {"action": "Immediate Patch", "impact": "Server\u2011Side Request Forgery"}, "threat_synthesis": {"affected_systems": "The flaw affects all releases of the WowOptin: Next\u2011Gen Popup Maker plugin for WordPress up to and including version 1.4.29. WordPress sites that have not upgraded beyond 1.4.29, especially those using the plugin for pop\u2011ups and lead generation, are therefore vulnerable.", "description_and_impact": "The plugin exposes a public REST API endpoint that accepts a user\u2011supplied URL and forwards it directly to WordPress network functions without any validation or restriction. This lack of protection allows an unauthenticated attacker to provoke the server to send HTTP requests to arbitrary addresses, including private internal services, potentially leaking sensitive data or enabling further compromise.", "risk_and_exploitability": "The CVSS score of 7.2 reflects a high\u2011severity vulnerability. Exploitation requires only a crafted HTTP request to the public endpoint and does not require authentication. The exploitation path is therefore simple, while the potential damage includes reading or modifying internal resources. Although the EPSS score and KEV listing are unavailable, the low technical barrier and the server\u2011side request nature imply a moderate to high risk if left unpatched."}}}}, "created": "2026-03-23T09:51:09.932070+00:00", "updated": "2026-03-25T14:42:45.581110+00:00", "vendors": ["wordpress", "wordpress$PRODUCT$wordpress", "wpxpo", "wpxpo$PRODUCT$wowoptin:_next-gen_popup_maker_\u2013_create_stunning_popups_and_optins_for_lead_generation"]}