CVE-2025-66551
MediumCVSS 6.3Exploitation Probability (EPSS)
Low risk15th percentile - higher than 15% of all known CVEs
Summary
Nextcloud Tables before versions 0.8.6 and 0.9.3 allows a malicious user to create their own table and then move a column to a victim's table. This vulnerability is fixed in versions 0.8.6 and 0.9.3.
Risk Assessment
The risk includes unauthorized modification of data in other users' tables, potentially leading to data integrity violation or unauthorized access to information.
Recommendation
Update Nextcloud Tables to version 0.8.6 or 0.9.3 (or later) to remediate the vulnerability.
Other vulnerabilities in Nextcloud Tables
See all- CVE-2026-45722High
In Nextcloud Tables (versions 0.9.0 to 0.9.7 and 1.0.0 to 1.0.2), missing sanitization allows a user with access to perform a limited SQL injection in the ORDER BY clause, enabling extraction of a single bit per request or database delay.
- CVE-2026-45544Medium
Nextcloud Tables from version 0.8.0 to before 1.0.4 exposes view filter criteria to users with read-only permissions. This issue is patched in versions 1.0.4 and 2.0.0.
- CVE-2025-66553Medium
Nextcloud Tables (versions prior to 0.8.7 and 0.9.4) allows authenticated users to view metadata of columns in other tables of the Tables app by modifying the numeric ID in a request. This vulnerability is fixed in 0.8.7 and 0.9.4.
- CVE-2025-66513Medium
Nextcloud Tables prior to 0.8.9, 0.9.6, and 1.0.1 did not limit the information about which table (numeric ID) is shared with which groups or users and the respective permissions to privileged users. This vulnerability is fixed in 0.8.9, 0.9.6, and 1.0.1.
- CVE-2025-58051Medium
Nextcloud Tables allows you to create your own tables with individual columns. Prior to 0.7.6, 0.8.8, and 0.9.5, when importing a table, a user was able to specify files on the server and when their format is supported by the used PhpSpreadsheet library they would be included and their content leaked to the user.
Original NVD description (English source)
Nextcloud Tables allows you to create your own tables with individual columns. Prior to 0.8.6 and 0.9.3, a malicious user was able to create their own table and then move a column to a victims table. This vulnerability is fixed in 0.8.6 and 0.9.3.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS