{"id":"CVE-2026-81890","title":"elFinder is an open-source file manager for web, written in JavaScript using jQuery UI","summary":"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::$csrfProtectedCmds in php/elFinderConnector.class.php, so validateCsrfToken(…","severity":"medium","cvss":5.4,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N","cwe":["CWE-352"],"vendor":"studio-42","product":"studio-42/elfinder","affected":["studio-42/elfinder < 2.1.70"],"patched":["studio-42/elfinder 2.1.70"],"published":"2026-08-31","updated":"2026-09-09","sourceUpdated":"2026-09-09T21:09:13.080","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-81890","references":[{"url":"https://github.com/Studio-42/elFinder/commit/31284facd033e081b2b69c08873b39c8a413b762","label":"security-advisories@github.com"},{"url":"https://github.com/Studio-42/elFinder/commit/36d40fff12222ad4c229d8889d8ed3fd3dbf0415","label":"security-advisories@github.com"},{"url":"https://github.com/Studio-42/elFinder/releases/tag/2.1.70","label":"security-advisories@github.com"},{"url":"https://github.com/Studio-42/elFinder/security/advisories/GHSA-9hjf-w35w-6vx2","label":"security-advisories@github.com"},{"url":"https://github.com/Studio-42/elFinder/security/advisories/GHSA-9hjf-w35w-6vx2","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-81890"},{"url":"https://github.com/advisories/GHSA-9hjf-w35w-6vx2"}],"tags":["nvd","ghsa","composer"],"epss":0.00153,"epssPercentile":0.04799,"aliases":["GHSA-9hjf-w35w-6vx2"],"ecosystem":"composer","ingestedAt":"2026-09-02T14:45:30.097Z","slug":"CVE-2026-81890","body":"## Overview\n\nelFinder is an open-source file manager for web, written in JavaScript using jQuery UI. Prior to 2.1.70, the netmount command is omitted from elFinderConnector::$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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Package advisory (CVE-2026-81890)\n\nAffected packages:\n\n- `studio-42/elfinder < 2.1.70`\n\nPatched in:\n\n- `studio-42/elfinder 2.1.70`\n\nSource: https://github.com/advisories/GHSA-9hjf-w35w-6vx2","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":29.7,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}