Users can delete external storage mount points
CVE-2023-39962
What is CVE-2023-39962?
Nextcloud Server, a popular open-source cloud storage solution, is affected by a data deletion vulnerability that allows unauthorized users to delete personal or global external storage. This issue impacts multiple versions of the server, where prior configurations can be rendered inaccessible. The vulnerability enables malicious actors to compromise external storage management and disrupt services for all users. To mitigate risks, it is advisable to apply the patches provided in the latest versions or temporarily disable the 'files_external' app until a secure version is deployed.
Affected Version(s)
security-advisories >= 19.0.0, < 19.0.13.10 < 19.0.0, 19.0.13.10
security-advisories >= 20.0.0, < 20.0.14.15 < 20.0.0, 20.0.14.15
security-advisories >= 21.0.0, < 21.0.9.13 < 21.0.0, 21.0.9.13