Nextcloud Groupfolders, a feature that allows administrators to set up shared folders for groups and teams, has a security vulnerability. This issue, identified as CVE-2025-66545, could allow a user with read-only access to restore files that have been moved to the trash bin. This essentially grants more permissions than intended, as a read-only user should not be able to manipulate files in this way.<\/p>\n
Product:<\/strong> Nextcloud Groupfolders<\/p>\n Published Date:<\/strong> December 05, 2025<\/p>\n Severity:<\/strong> Low<\/p>\n Status:<\/strong> Analyzed<\/p>\n The vulnerability impacts several versions of Nextcloud Groupfolders. Users are advised to check their current installation against the following affected versions:<\/p>\n The vulnerability has been thoroughly analyzed, and patches have been released to address the issue. It is crucial for users to update their Nextcloud Groupfolders installations to the fixed versions to ensure the security of their data.<\/p>\n This vulnerability is rated as Low Severity<\/strong>. While it doesn’t pose an immediate critical threat, it’s important to understand that any unauthorized privilege escalation can lead to unexpected data manipulation or system behavior. Addressing even low-severity vulnerabilities is a key practice in maintaining a robust security posture.<\/p>\n The good news is that Nextcloud has already provided fixes for this vulnerability. To protect your Nextcloud Groupfolders, you should update to one of the following versions or later:<\/p>\n Always ensure your Nextcloud instance and all its components are kept up-to-date with the latest security patches to mitigate potential risks.<\/p>\n https:\/\/github.com\/nextcloud\/groupfolders\/commit\/bbe87ebed8da23e9df4db637a76fbc8d36439d58<\/p>\n https:\/\/github.com\/nextcloud\/groupfolders\/issues\/4041<\/p>\n https:\/\/github.com\/nextcloud\/groupfolders\/pull\/4076<\/p>\n https:\/\/github.com\/nextcloud\/security-advisories\/security\/advisories\/GHSA-2vrq-fhmf-c49m<\/p>\n","protected":false},"excerpt":{"rendered":" Understanding the Nextcloud Groupfolders Vulnerability Nextcloud Groupfolders, a feature that allows administrators to set up shared folders for groups and teams, has a security vulnerability. This issue, identified as CVE-2025-66545, could allow a user with read-only access to restore files that have been moved to the trash bin. This essentially grants more permissions than intended, […]<\/p>\n","protected":false},"author":17,"featured_media":2652,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[788,770,795,744,765],"class_list":["post-2677","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-security","tag-file-management","tag-nextcloud","tag-nextcloud-groupfolders","tag-privilege-escalation","tag-security-update"],"blocksy_meta":[],"yoast_head":"\nAffected Products<\/h2>\n
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