Client Connector
CVE-2023-28800: Output encoding missing in redrurl parameter
When using local accounts for administration, the redirect url parameter was not encoded correctly, allowing for an XSS attack providing admin login.
Published
ExploitedNot in CISA KEV
Ransomware useNot reportedPer CISA
SeverityHIGHCVSS 3.1 8.1
EPSS0.55%Chance of exploitation in 30 days
Public exploitNot tracked
FixAvailable
Automatic summary from the vendor's CVE record. We haven't written a full analysis of this vulnerability yet.
Affected and fixed versions
| Product / branch | Fixed in |
|---|---|
| Client Connector 0 | 3.9 Mac, 3.7 Win, 1.9.3 iOS, 1.10.2 Android, 1.10.1 Chrome OS, 1.4 Linux or later |
Always confirm against the vendor advisory, which lists every fixed hotfix.
What it is
When using local accounts for administration, the redirect url parameter was not encoded correctly, allowing for an XSS attack providing admin login.
Sources
KEV status, EPSS score and vendor data refreshed automatically, last on 13 Oct 2026.