CVE-2020-10254: owncloud Improper Authentication
CVSS: 5.9v3.1MediumModified
Published 19-02-2021Last modified 04-08-2024
Vulnerability summary
CVE-2020-10254 is a medium (CVSS 5.9) Improper Authentication vulnerability in owncloud. EPSS estimates a 1.94% chance of exploitation in the next 30 days, higher than 79.9% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
5.9/10
010
Medium · v3.1 (NVD)EPSS score
1.94%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference
Timeline
- 19-02-2021PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
An issue was discovered in ownCloud before 10.4. An attacker can bypass authentication on a password-protected image by displaying its preview.
CVSS metrics
2 scores · 1 source · 2 versionsMedium 5.9Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:NSourcesSingle source
Medium 4.3Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:P/I:N/A:NSourcesSingle source
EPSS trend
Probability
1.94%
Chance of exploitation in the next 30 days
Percentile
80%
Versus all other CVEs
30-day change
0.00 pp
From 1.94% on 21-09-2026
21-09-202621-10-2026
EPSS score1.94%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (blog.hacktivesecurity.com)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Owncloud1 product
- owncloud< 10.4.0
1 vendor · 1 product
References
3 links- blog.hacktivesecurity.com/index.php?controller=post&action=view&id_post=44X Refsource MISCExploitThird Party Advisory
- owncloud.com/security-advisories/public-link-password-bypass-via-image-previews/X Refsource CONFIRMVendor Advisory