{"id":"CVE-2026-109162","title":"Forms using FileUpload or ImageUpload elements with a custom saveToFileMount configured stored uploaded files in the default storage folder 1:/user_upload/ instead of the configured destination","summary":"Forms using FileUpload or ImageUpload elements with a custom saveToFileMount configured stored uploaded files in the default storage folder 1:/user_upload/ instead of the configured destination. This could cause uploaded files to end up …","severity":"medium","cvss":6.3,"cvssVector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","cwe":["CWE-552","CWE-696"],"vendor":"TYPO3","product":"typo3/cms-form","affected":["typo3/cms-form >= 14.0.0 < 14.3.9"],"published":"2026-10-13","updated":"2026-10-16","sourceUpdated":"2026-10-16T19:56:15.773","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-109162","references":[{"url":"https://github.com/TYPO3/typo3/commit/cc3e8e28b0e830aaf6ad857272f3f2dc3c4ede12","label":"f4fb688c-4412-4426-b4b8-421ecf27b14a"},{"url":"https://github.com/TYPO3/typo3/commit/f536f75c6bd3456165e4200e5df1b236ddeae3b0","label":"f4fb688c-4412-4426-b4b8-421ecf27b14a"},{"url":"https://news.typo3.com/security/advisory/typo3-core-sa-2026-024","label":"f4fb688c-4412-4426-b4b8-421ecf27b14a"}],"tags":["nvd","cve.org"],"epss":0.00371,"epssPercentile":0.30881,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-16T17:01:48.615569Z"},"cvssSource":"cna","ingestedAt":"2026-10-13T10:22:03.559Z","slug":"CVE-2026-109162","body":"## Overview\n\nForms using FileUpload or ImageUpload elements with a custom saveToFileMount configured stored uploaded files in the default storage folder 1:/user_upload/ instead of the configured destination. This could cause uploaded files to end up in a publicly accessible storage even though a restricted, non-public storage had been configured. Files stored this way are served directly, without the access checks applied to non-public storages. Forms that use the default value for saveToFileMount are not affected. This issue affects TYPO3 CMS versions 14.0.0-14.3.8.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":35,"depthScoreParts":{"impact":34.7,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[{"seq":221243,"id":"CVE-2026-109162","ts":1792030886018,"field":"cvss","old":null,"new":"6.3"},{"seq":221242,"id":"CVE-2026-109162","ts":1792030886018,"field":"severity","old":"none","new":"medium"}]}