CVE-2024-37884 Nextcloud Server's users can delete old versions of read-only shared files

What is CVE-2024-37884?

CVE-2024-37884 is a low-severity missing authorization vulnerability in Nextcloud Nextcloud Server, published on 14 Jun 2024. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

Nextcloud Server is a self hosted personal cloud system. A malicious user was able to send delete requests for old versions of files they only got shared with read permissions. It is recommended that the Nextcloud Server is upgraded to 26.0.12 or 27.1.7 or 28.0.3 and that the Nextcloud Enterprise Server is upgraded to 26.0.12 or 27.1.7 or 28.0.3.

Weakness: CWE-284

Which versions are affected by CVE-2024-37884?

It affects 1 product.

Products include Nextcloud Nextcloud Server.

How do I fix CVE-2024-37884?

No fix has been published for CVE-2024-37884 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2024-37884 being exploited?

There is no known exploitation of CVE-2024-37884 in the wild and no public exploit code.

Other vulnerabilities in Nextcloud Nextcloud Server

• CVE-2021-32802 Preview generation used third-party library not suited for user-generated content in Nextcloud server Critical 9.3
• CVE-2023-26482 Scope of workflow operations is not validated in nextcloud server Critical 9.1
• CVE-2018-3775 Auth bypass in Nextcloud Server High 8.8
• CVE-2023-35172 Nextcloud Server password reset endpoint is not brute force protected High 8.7
• CVE-2023-32320 Nextcloud Server's brute force protection allows someone to send more requests than intended High 8.7

All Nextcloud Nextcloud Server vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-xwgx-f37p-xh8c.