CVE-2026-81890

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{"affected": [{"affectedData": [{"product": "elFinder", "vendor": "Studio-42", "versions": [{"status": "affected", "version": "< 2.1.70"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "elFinder is an open-source file manager for web, written in JavaScript using jQuery UI. Prior to 2.1.70, the netmount command is omitted from elFinderConnector::$csrfProtectedCmds in php/elFinderConnector.class.php, so validateCsrfToken() is not called for this state-changing operation. In the shipped php/connector.minimal.php-dist configuration, FTP network mounts are enabled by default, and attacker-controlled protocol, host, path, port, user, pass, alias, and options arguments flow through elFinder::netmount() in php/elFinder.class.php to php/elFinderVolumeFTP.class.php. A cross-site request can therefore persist an attacker-chosen FTP mount in the victim's session, cause the PHP server to connect to an attacker-chosen FTP host and port, and send supplied credentials without an X-elFinder-CSRF token. This issue is fixed in version 2.1.70."}], "id": "CVE-2026-81890", "lastModified": "2026-09-09T21:09:13.080", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 2.5, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-81890", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-09-01T13:54:45.736717Z", "version": "2.0.3"}}]}, "published": "2026-08-31T21:17:52.603", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/Studio-42/elFinder/commit/31284facd033e081b2b69c08873b39c8a413b762"}, {"source": "security-advisories@github.com", "url": "https://github.com/Studio-42/elFinder/commit/36d40fff12222ad4c229d8889d8ed3fd3dbf0415"}, {"source": "security-advisories@github.com", "url": "https://github.com/Studio-42/elFinder/releases/tag/2.1.70"}, {"source": "security-advisories@github.com", "url": "https://github.com/Studio-42/elFinder/security/advisories/GHSA-9hjf-w35w-6vx2"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "url": "https://github.com/Studio-42/elFinder/security/advisories/GHSA-9hjf-w35w-6vx2"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-352"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,2.1.70)"}}], "enrichment": {"confidence": 97.0, "confidence_source": "matching", "scores": [{"score": 97.0, "source": "matching"}]}, "original": {"product": "elFinder", "source": "cna", "vendor": "Studio-42"}, "product": "elfinder", "vendor": "studio42"}], "created": "2026-08-31T21:45:04.639903+00:00", "updated": "2026-09-01T12:30:04.180588+00:00", "vendors": ["studio42", "studio42$PRODUCT$elfinder"]}