CVE-2026-8841

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Extra Settings for RocketChat", "vendor": "andrewabarber", "versions": [{"lessThanOrEqual": "0.1", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "security@wordfence.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The Extra Settings for RocketChat plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'rocketchat' shortcode's 'title' attribute in versions up to, and including, 0.1. This is due to insufficient input sanitization and output escaping in the rxstg_shortcode() function, which concatenates the user-supplied 'title' attribute directly into HTML output. 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 Extra Settings for RocketChat para WordPress es vulnerable a cross-site scripting almacenado a trav\u00e9s del atributo 'title' del shortcode 'rocketchat' en versiones hasta la 0.1, inclusive. Esto se debe a una sanitizaci\u00f3n de entrada y un escape de salida insuficientes en la funci\u00f3n rxstg_shortcode(), que concatena el atributo 'title' proporcionado por el usuario directamente en la salida HTML. Esto hace posible que atacantes autenticados, con acceso de nivel de colaborador y superior, inyecten scripts web arbitrarios en p\u00e1ginas que se ejecutar\u00e1n cada vez que un usuario acceda a una p\u00e1gina inyectada."}], "id": "CVE-2026-8841", "lastModified": "2026-07-23T08:10:00.137", "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-2026-8841", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-06-09T13:27:31.196873Z", "version": "2.0.3"}}]}, "published": "2026-06-09T05:16:39.507", "references": [{"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/extra-settings-for-rocketchat/trunk/rocketchat-extra-settings.php#L346"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/extra-settings-for-rocketchat/trunk/rocketchat-extra-settings.php#L350"}, {"source": "security@wordfence.com", "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/061eeba3-10ad-4272-9880-dc01d4368683?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": "[0,0.1]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "Extra Settings for RocketChat", "source": "cna", "vendor": "andrewabarber"}, "product": "extra_settings_for_rocketchat", "vendor": "andrewabarber"}, {"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"}], "created": "2026-06-09T06:15:06.496735+00:00", "updated": "2026-06-09T08:56:20.113001+00:00", "vendors": ["andrewabarber", "andrewabarber$PRODUCT$extra_settings_for_rocketchat", "wordpress", "wordpress$PRODUCT$wordpress"]}