CVE-2021-32734 File path disclosure of shared files in Nextcloud Text application
Attackers can obtain full file paths of shared files via verbatim exception messages in the Nextcloud Text application.
- 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-2021-32734?
CVE-2021-32734 is a low-severity vulnerability in Nextcloud Nextcloud Server, published on 12 Jul 2021. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Nextcloud Server is a Nextcloud package that handles data storage. In versions prior to 19.0.13, 20.011, and 21.0.3, the Nextcloud Text application shipped with Nextcloud Server returned verbatim exception messages to the user. This could result in a full path disclosure on shared files. The issue was fixed in versions 19.0.13, 20.0.11, and 21.0.3. As a workaround, one may disable the Nextcloud Text application in Nextcloud Server app settings.
Weakness: CWE-209
Which versions are affected by CVE-2021-32734?
It affects 1 product.
Products include Nextcloud Nextcloud Server.
How do I fix CVE-2021-32734?
Upgrade to a fixed version.
Is CVE-2021-32734 being exploited?
There is no known exploitation of CVE-2021-32734 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-6hf5-c2c4-2526.