What is CVE-2018-16467?

CVE-2018-16467 is a medium-severity vulnerability in Nextcloud Server, classified under Information Disclosure. CVSS score: 5.3/10. Published 2018-10-30.

How severe is CVE-2018-16467?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Auth bypass in Nextcloud Server

CVE-2018-16467

A missing check in Nextcloud Server prior to 14.0.0 could give unauthorized access to the previews of single file password protected shares.

Vulnerability class: Information Disclosure

Published 2018-10-30 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.011 (63.4th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 63rd percentile — 63.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000

Affected products

Nextcloud Server
Nextcloud Server — versions <14.0.0

Weakness classification (CWE)

References

nextcloud.com/security/advisory/ (Vendor Advisory)
hackerone.com/reports/231917 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2018-16467?: CVE-2018-16467 is a medium-severity vulnerability in Nextcloud Server, classified under Information Disclosure. CVSS score: 5.3/10. Published 2018-10-30.
How severe is CVE-2018-16467?: Medium severity. CVSS v3 base score is 5.3 out of 10.