Auth bypass in ownCloud
CVE-2020-10254
An issue was discovered in ownCloud before 10.4. An attacker can bypass authentication on a password-protected image by displaying its preview.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.019 (79.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 79th percentile — 79.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.019 · newest: 0.019 · change: 0.000
Affected products
Weakness classification (CWE)
References
- owncloud.org/changelog/server/ (Product, Release Notes)
- blog.hacktivesecurity.com/index.php (Exploit, Third Party Advisory)
- owncloud.com/security-advisories/public-link-password-bypass-via-image-previews/ (Vendor Advisory)
Frequently asked questions
- What is CVE-2020-10254?
- CVE-2020-10254 is a medium-severity vulnerability in ownCloud, classified under Improper Authentication. CVSS score: 5.9/10. Published 2021-02-19.
- How severe is CVE-2020-10254?
- Medium severity. CVSS v3 base score is 5.9 out of 10.