CVE-2025-665534.3MediumCWE-639

CVE-2025-66553: Nextcloud Tables app allowed users to view columns metadata information of any table

nextcloud · security-advisories

Affected: nextcloud security-advisories · Exploitation: unlikely (under 1%)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

0.3%probability of exploitation in the next 30 days

22nd percentile

050100

Higher than 22% of scored CVEs

4.3MediumCVSS 3.1

LowMediumHighCrit.

DescriptionCVE.org

Nextcloud Tables allows you to create your own tables with individual columns. Prior to 0.8.7 and 0.9.4, authenticated users were able to view meta data 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.

Affected products1

From the CVE record. A product or version that is not listed is unknown, not unaffected.

nextcloud · security-advisories>= 0.9.0-beta.1, < 0.9.4; < 0.8.7

On the Atlas

Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.

Open the Atlas

Exploitation: Unlikely (under 1%). EPSS under 1%, or no score yet.
CISA KEV: Not listed
Public check: No public nuclei template
Weakness: Insecure Direct Object Reference
Vendor: nextcloud
Published: December 2025
Band: Unlikely (under 1%), December 2025
Bounty reports: 1 disclosed on HackerOne

Disclosed bug bounty reports about CVE-2025-66553

The reports on HackerOne that name this CVE, with HackerOne's own outcome. Titles and metadata only.

Tables app allowed users to view columns metadata information of any tableNextcloud · 2025 · medium severityValid

CoverageNo articles yet

No CyberSIXT article names CVE-2025-66553 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.