CVE-2020-8119 Missing authorization in Nextcloud Server
Attackers can leak previews and files by opening file-drop share links via the gallery app due to improper authorization checks.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2020-8119?
CVE-2020-8119 is a medium-severity missing authorization vulnerability in Nextcloud Nextcloud Server, published on 4 Feb 2020. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Improper authorization in Nextcloud server 17.0.0 causes leaking of previews and files when a file-drop share link is opened via the gallery app.
Which versions are affected by CVE-2020-8119?
It affects 1 product.
Products include Nextcloud Nextcloud Server.
How do I fix CVE-2020-8119?
Upgrade to a fixed version.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2020-8119 being exploited?
There is no known exploitation of CVE-2020-8119 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
- CVE-2023-26482 Scope of workflow operations is not validated in nextcloud server
- CVE-2018-3775 Auth bypass in Nextcloud Server
- CVE-2023-35172 Nextcloud Server password reset endpoint is not brute force protected
- CVE-2023-32320 Nextcloud Server's brute force protection allows someone to send more requests than intended
Sources
Also known as GHSA-rw2m-m5fq-rcj4.