CVE-2020-8189
MEDIUM
5.4
CVSS Score
Published: August 21, 2020 at 08:34 PM UTC
Updated: June 17, 2026 at 03:26 AM UTC
2 products affected across 2 vendorsDesktopDesktop
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Severity
MEDIUM5.4
Exploit prediction
EPSS 1%
Description
A cross-site scripting error in Nextcloud Desktop client 2.6.4 allowed to present any html (including local links) when responding with invalid data on the login attempt.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Desktop· Nextcloudnextcloud-app
95%v < 2.6.5
Affected range stops below 2.6.5, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (3)
x_refsource_MISCExploitThird Party Advisory
Source: [email protected]
https://hackerone.com/reports/685552x_refsource_MISCBroken LinkVendor Advisory
Source: [email protected]
https://nextcloud.com/security/advisory/?id=NC-SA-2020-027Vendor Advisoryx_refsource_GENTOOThird Party Advisory
Source: [email protected]
https://security.gentoo.org/glsa/202009-09CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- REQUIRED
- Scope
- CHANGED
- Confidentiality
- LOW
- Integrity
- LOW
- Availability
- NONE
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-79
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