Description
Nextcloud is an open source content collaboration platform. From versions 1.15.0 to before 1.15.4, 1.16.0 to before 1.16.3, 1.17.0 to before 1.17.1, and 1.18.0 to before 1.18.1, a malicious user with access to an end-to-end encrypted files drop link was able to also drop files into other end-to-end encrypted folders of the share owner. Reading and modifying of other files was not possible. This issue has been patched in versions 1.15.4, 1.16.3, 1.17.1, 1.18.1, and 2.0.0-rc.7.
Problem types
CWE-639: Authorization Bypass Through User-Controlled Key
Product status
>= 1.16.0, < 1.16.3
>= 1.17.0, < 1.17.1
>= 1.18.0, < 1.18.1
References
github.com/...sories/security/advisories/GHSA-p3qw-7gwx-wg24
github.com/nextcloud/end_to_end_encryption/pull/1395