CVE-2026-1261

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "MetForm Pro", "vendor": "Wpmet", "versions": [{"lessThanOrEqual": "3.9.6", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "security@wordfence.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The MetForm Pro plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Quiz feature in all versions up to, and including, 3.9.6 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page."}, {"lang": "es", "value": "El plugin MetForm Pro para WordPress es vulnerable a cross-site scripting almacenado a trav\u00e9s de la funci\u00f3n de Cuestionario en todas las versiones hasta la 3.9.6, inclusive, debido a una sanitizaci\u00f3n de entrada y un escape de salida insuficientes. Esto permite que atacantes no autenticados inyecten scripts web arbitrarios en p\u00e1ginas que se ejecutar\u00e1n cada vez que un usuario acceda a una p\u00e1gina inyectada."}], "id": "CVE-2026-1261", "lastModified": "2026-06-17T10:15:24.683", "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-2026-1261", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-03-10T15:57:55.254520Z", "version": "2.0.3"}}]}, "published": "2026-03-10T18:18:04.723", "references": [{"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/metform-pro/tags/3.9.5/core/features/quiz/loader.php#L121"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/metform-pro/tags/3.9.5/core/features/quiz/loader.php#L69"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/metform-pro/tags/3.9.5/core/features/quiz/loader.php#L85"}, {"source": "security@wordfence.com", "url": "https://wpmet.com/plugin/metform/roadmaps/"}, {"source": "security@wordfence.com", "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/e6361ada-f2ba-404e-b9d3-b169da44aa90?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": "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": "[0,3.9.6]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "MetForm Pro", "source": "cna", "vendor": "Wpmet"}, "product": "metform_pro", "vendor": "wpmet"}], "analysis": {"en": {"generated_at": "2026-04-15T16:41:28.181176+00:00", "value": {"mitigation_remediation": ["Upgrade MetForm Pro to a version newer than 3.9.6 if one is available from wpmet.", "If an up\u2011to\u2011date version cannot be applied, disable or remove the Quiz feature or the entire MetForm Pro plugin from the WordPress installation.", "Deploy a web application firewall or security plugin that blocks common XSS payloads and enforces a strict Content Security Policy to reduce the risk of injected scripts executing."], "summary": {"action": "Patch immediately", "impact": "Stored Cross\u2011Site Scripting (unauthenticated script injection that persists in pages)"}, "threat_synthesis": {"affected_systems": "All releases of the MetForm Pro WordPress plugin up to and including version 3.9.6, distributed by wpmet.", "description_and_impact": "The vulnerability is a stored XSS flaw in the Quiz feature of MetForm Pro. Unsanitized input is saved and later rendered without proper escaping, allowing an attacker to inject arbitrary JavaScript. The injected script runs whenever a victim visits an affected page, potentially enabling cookie theft, session hijacking, defacement, or other malicious actions. The weakness is classified as CWE\u201179, affecting confidentiality, integrity, and availability of the site.", "risk_and_exploitability": "The CVSS score of 7.2 indicates moderate severity, while the EPSS score of less than 1\u202f% shows a very low probability of current exploitation. The vulnerability is not listed by CISA as a Known Exploited Vulnerability. Attackers can exploit the flaw without authentication by submitting forged quiz data; the stored payload is executed on subsequent page loads, demonstrating the potential for widespread impact if the plugin is active on a site. "}}}}, "created": "2026-03-11T11:50:27.957677+00:00", "updated": "2026-04-15T17:00:07.027992+00:00", "vendors": ["wordpress", "wordpress$PRODUCT$wordpress", "wpmet", "wpmet$PRODUCT$metform_pro"]}