CVE-2020-16255
ownCloud (Core) before 10.5 allows XSS in login page 'forgot password.'
ownCloud (Core) before 10.5 allows XSS in login page 'forgot password.'
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
ownCloud (Core) before 10.5 allows XSS in login page 'forgot password.'
- Record
CVE-2020-16255- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:P/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
CVE List No score
ownCloud (Core) before 10.5 allows XSS in login page 'forgot password.'
- Record
CVE-2020-16255- Updated
- 2026-11-02
EUVDEUVD-2020-8216 No score
ownCloud (Core) before 10.5 allows XSS in login page 'forgot password.'
- Record
EUVD-2020-8216- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-686m-27qq-c25w No score
ownCloud (Core) before 10.5 allows XSS in login page 'forgot password.'
ownCloud (Core) before 10.5 allows XSS in login page 'forgot password.'
- Record
GHSA-686m-27qq-c25w- Weakness
- CWE-79
- Updated
- 2026-11-02
OSVALPINE-CVE-2020-16255
ownCloud (Core) before 10.5 allows XSS in login page 'forgot password.'
- Record
ALPINE-CVE-2020-16255- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Updated
- 2026-11-02
OSV
ownCloud (Core) before 10.5 allows XSS in login page 'forgot password.'
- Record
CVE-2020-16255- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Updated
- 2026-11-02
Affected products
Affected packages
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-16255 is a medium vulnerability (CVSS 6.1) in Owncloud, published January 15, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.86%, the 58th percentile. Fixed in ruby 2.5.8-r0.