CVE-2026-3986

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Calculated Fields Form", "vendor": "codepeople", "versions": [{"lessThanOrEqual": "5.4.5.0", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "security@wordfence.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The Calculated Fields Form plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the form settings in all versions up to, and including, 5.4.5.0. This is due to insufficient capability checks on the form settings save handler and insufficient input sanitization of the `fcontent` field in `fhtml` field types. 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 Calculated Fields Form para WordPress es vulnerable a cross-site scripting almacenado a trav\u00e9s de la configuraci\u00f3n del formulario en todas las versiones hasta la 5.4.5.0, inclusive. Esto se debe a comprobaciones de capacidad insuficientes en el gestor de guardado de la configuraci\u00f3n del formulario y a una sanitizaci\u00f3n de entrada insuficiente del campo 'fcontent' en los tipos de campo 'fhtml'. Esto permite a atacantes autenticados, con acceso de nivel Colaborador y superior, inyectar scripts web arbitrarios en p\u00e1ginas que se ejecutar\u00e1n cada vez que un usuario acceda a una p\u00e1gina inyectada."}], "id": "CVE-2026-3986", "lastModified": "2026-06-17T10:44:34.397", "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-2026-3986", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-03-13T16:03:38.295924Z", "version": "2.0.3"}}]}, "published": "2026-03-13T19:55:12.937", "references": [{"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/calculated-fields-form/tags/5.4.4.5/cp_calculatedfieldsf_free.php#L131"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/calculated-fields-form/tags/5.4.4.5/inc/cpcff_form.inc.php#L326"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/calculated-fields-form/tags/5.4.4.5/inc/cpcff_page_builders.inc.php#L41"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/calculated-fields-form/trunk/cp_calculatedfieldsf_free.php#L131"}, {"source": "security@wordfence.com", "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/d650261a-ec0a-4538-ad59-0589712702fa?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": "generic", "value": "[0,5.4.5.0]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Calculated Fields Form", "source": "cna", "vendor": "codepeople"}, "product": "calculated_fields_form", "vendor": "codepeople"}, {"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": "2026-03-19T17:52:07.745451+00:00", "value": {"mitigation_remediation": ["Upgrade Calculated Fields Form to any version newer than 5.4.5.0.", "If an upgrade cannot be performed immediately, restrict Contributor and lower\u2011level roles from accessing the plugin\u2019s settings page or remove those permissions.", "As a last resort, disable or uninstall the Calculated Fields Form plugin until a patched version is available."], "summary": {"action": "Patch Immediately", "impact": "Stored Cross\u2011Site Scripting"}, "threat_synthesis": {"affected_systems": "Any WordPress installation that runs CodePeople\u2019s Calculated Fields Form plugin version 5.4.5.0 or earlier is affected. The flaw is present in all releases up to and including 5.4.5.0, as confirmed by the plugin\u2019s source code for versions 5.4.4.5 and older.", "description_and_impact": "The Calculated Fields Form plugin for WordPress has a stored cross\u2011site scripting flaw caused by missing capability checks on the form settings save handler and unsanitized input of the fcontent field in fhtml field types. The vulnerability allows an authenticated user with Contributor level access or higher to inject arbitrary JavaScript, which is stored and subsequently executed whenever a page containing the injected form is loaded in a visitor\u2019s browser. This can lead to session hijacking, defacement, or other browser\u2011side attacks that compromise the confidentiality and integrity of the site\u2019s data.", "risk_and_exploitability": "The CVSS v3.1 score of 6.4 indicates medium severity, and the EPSS score of less than 1% suggests a low probability of exploitation. The vulnerability is not listed in the CISA KEV catalog. Exploitation requires authenticated access with Contributor\u2013level privileges or higher, meaning an insider or a compromised contributor account is the most likely attacker. Overall, the risk is moderate, but the impact could be significant if an attacker can execute script in visitors\u2019 browsers."}}}}, "created": "2026-03-16T09:37:53.103390+00:00", "updated": "2026-03-23T09:59:38.587332+00:00", "vendors": ["codepeople", "codepeople$PRODUCT$calculated_fields_form", "wordpress", "wordpress$PRODUCT$wordpress"]}