CVE-2025-66513 Nextcloud Tables app share information not limited to relevant users
Unprivileged users can view table sharing details and permissions, exposing sensitive configuration data in Nextcloud Tables.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2025-66513?
CVE-2025-66513 is a medium-severity vulnerability in nextcloud security-advisories, published on 5 Dec 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Nextcloud Tables allows you to create your own tables with individual columns. Prior to 0.8.9, 0.9.6, and 1.0.1, the information which table (numeric ID) is shared with which groups or users and the respective permissions was not limited to privileged users. This vulnerability is fixed in 0.8.9, 0.9.6, and 1.0.1.
Weakness: CWE-639
Which versions are affected by CVE-2025-66513?
It affects 1 product.
Products include Nextcloud Tables.
How do I fix CVE-2025-66513?
No fix has been published for CVE-2025-66513 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-66513 being exploited?
There is no known exploitation of CVE-2025-66513 in the wild and no public exploit code.
Other vulnerabilities in nextcloud security-advisories
- CVE-2026-45545 Nextcloud: SQL Injection in Column Type Parameter Allows Arbitrary SQL Execution
- CVE-2026-45722 Nextcloud: Tables app allows limited SQLi in ORDER BY with malicious sort order argument for Table Views
- CVE-2025-66551 Nextcloud Tables is missing an ownership check which allows moving columns into tables of other users
- CVE-2024-52511 Nextcloud Tables has an Authorization Bypass Through User-Controlled Key in Tables
- CVE-2026-45544 Nextcloud: Information Disclosure of view filter metdata via Broken Sensitive Data Masking in ViewService
Sources
Also known as GHSA-2cwj-qp49-4xfw.