CVE-2026-4281

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "FormLift for Infusionsoft Web Forms", "vendor": "trainingbusinesspros", "versions": [{"lessThanOrEqual": "7.5.21", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "security@wordfence.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The FormLift for Infusionsoft Web Forms plugin for WordPress is vulnerable to Missing Authorization in all versions up to, and including, 7.5.21. This is due to missing capability checks on the connect() and listen_for_tokens() methods of the FormLift_Infusionsoft_Manager class, both of which are hooked to 'plugins_loaded' and execute on every page load. The connect() function generates an OAuth connection password and leaks it in the redirect Location header without verifying the requesting user is authenticated or authorized. The listen_for_tokens() function only validates the temporary password but performs no user authentication before calling update_option() to save attacker-controlled OAuth tokens and app domain. This makes it possible for unauthenticated attackers to hijack the site's Infusionsoft connection by first triggering the OAuth flow to obtain the temporary password, then using that password to set arbitrary OAuth tokens and app domain via update_option(), effectively redirecting the plugin's API communication to an attacker-controlled server."}, {"lang": "es", "value": "El plugin FormLift for Infusionsoft Web Forms para WordPress es vulnerable a la falta de autorizaci\u00f3n en todas las versiones hasta la 7.5.21, inclusive. Esto se debe a la falta de comprobaciones de capacidad en los m\u00e9todos connect() y listen_for_tokens() de la clase FormLift_Infusionsoft_Manager, ambos enganchados a 'plugins_loaded' y que se ejecutan en cada carga de p\u00e1gina. La funci\u00f3n connect() genera una contrase\u00f1a de conexi\u00f3n OAuth y la filtra en el encabezado de redirecci\u00f3n Location sin verificar que el usuario solicitante est\u00e9 autenticado o autorizado. La funci\u00f3n listen_for_tokens() solo valida la contrase\u00f1a temporal, pero no realiza ninguna autenticaci\u00f3n de usuario antes de llamar a update_option() para guardar tokens OAuth y el dominio de la aplicaci\u00f3n controlados por el atacante. Esto hace posible que atacantes no autenticados secuestren la conexi\u00f3n de Infusionsoft del sitio al primero activar el flujo OAuth para obtener la contrase\u00f1a temporal, luego usando esa contrase\u00f1a para establecer tokens OAuth arbitrarios y el dominio de la aplicaci\u00f3n a trav\u00e9s de update_option(), redirigiendo efectivamente la comunicaci\u00f3n de la API del plugin a un servidor controlado por el atacante."}], "id": "CVE-2026-4281", "lastModified": "2026-06-17T10:56:21.253", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 1.4, "source": "security@wordfence.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-4281", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-03-26T14:11:44.213872Z", "version": "2.0.3"}}]}, "published": "2026-03-26T05:16:40.107", "references": [{"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/formlift/tags/7.5.21/modules/api/infusionsoft-manager.php#L21"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/formlift/tags/7.5.21/modules/api/infusionsoft-manager.php#L46"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/formlift/tags/7.5.21/modules/api/infusionsoft-manager.php#L62"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/formlift/tags/7.5.21/modules/api/infusionsoft-manager.php#L64"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/formlift/trunk/modules/api/infusionsoft-manager.php#L21"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/formlift/trunk/modules/api/infusionsoft-manager.php#L46"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/formlift/trunk/modules/api/infusionsoft-manager.php#L62"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/formlift/trunk/modules/api/infusionsoft-manager.php#L64"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3490212%40formlift&new=3490212%40formlift&sfp_email=&sfph_mail="}, {"source": "security@wordfence.com", "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/a65cc674-a0ea-46b9-b609-b184e1f7ca8e?source=cve"}], "sourceIdentifier": "security@wordfence.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-862"}], "source": "security@wordfence.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,7.5.21]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "FormLift for Infusionsoft Web Forms", "source": "cna", "vendor": "trainingbusinesspros"}, "product": "formlift_for_infusionsoft_web_forms", "vendor": "trainingbusinesspros"}, {"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": "2026-03-26T05:51:05.960462+00:00", "value": {"mitigation_remediation": ["Upgrade the FormLift for Infusionsoft Web Forms plugin to a version newer than 7.5.21.", "If an upgrade cannot be applied immediately, disable or delete the plugin to prevent the vulnerable code from executing.", "Monitor the WordPress options table and OAuth token settings for unexpected changes.", "Review the Infusionsoft account logs for unauthorized API access or connections to unfamiliar domains.", "Enforce least\u2011privilege user roles and restrict plugin installation to trusted administrators."], "summary": {"action": "Patch Immediately", "impact": "Unauthenticated hijack of the site\u2019s Infusionsoft integration via the plugin\u2019s OAuth flow"}, "threat_synthesis": {"affected_systems": "WordPress sites that have installed the trainingbusinesspros FormLift for Infusionsoft Web Forms plugin in any version up to and including 7.5.21 are affected. The issue is confined to the plugin code; the core WordPress installation is not vulnerable.", "description_and_impact": "The FormLift for Infusionsoft Web Forms plugin contains missing authorization checks in its connect() and listen_for_tokens() methods, which are executed on every page load. Because the plugin generates and leaks an OAuth temporary password without verifying the requesting user, an attacker who can send unauthenticated HTTP requests can trigger the OAuth flow, capture that password, and then use it to write attacker\u2011controlled OAuth tokens and an app domain into WordPress options. This allows the attacker to redirect the plugin\u2019s API calls to an attacker\u2011controlled server, effectively hijacking the site's Infusionsoft integration. The weakness is an instance of broken access control (CWE\u2011862) and results in unauthorized manipulation of third\u2011party API credentials, exposing the site to data theft or injection.", "risk_and_exploitability": "The vulnerability has a CVSS score of 5.3, indicating moderate severity. Because no EPSS score is available and the flaw is not listed in the CISA KEV catalog, the likelihood of exploitation cannot be precisely quantified; however, the attack path is simple\u2014unauthenticated HTTP requests to the plugin\u2019s endpoints are sufficient\u2014and the impact on the integration is significant. Given these factors, the risk is considered high relative to the vulnerability\u2019s moderate severity rating, as the hijacked API traffic can expose or corrupt sensitive business data."}}}}, "created": "2026-03-26T11:30:38.218129+00:00", "updated": "2026-03-26T12:08:38.459576+00:00", "vendors": ["trainingbusinesspros", "trainingbusinesspros$PRODUCT$formlift_for_infusionsoft_web_forms", "wordpress", "wordpress$PRODUCT$wordpress"]}