Servers and applications
CVE-2019-11881
A vulnerability exists in Rancher before 2.2.4 in the login component, where the errorMsg parameter can be tampered to display arbitrary content, filtering tags but not special characters or symbols. There's no other limitation of the message, allowing malicious users to lure legitimate users to visit phishing sites with scare tactics, e.g., displaying a "This version of Rancher is outdated,…
- Severity
- Medium 4.7
- Published
- 10 Jun 2019
- Last changed
- 17 Jun 2026
- Added to UpHeron
- 1 Nov 2026
- Exploit chance
- 2% in the next 30 daysHigher than 80% of CVEs. EPSS by FIRST, 10 Nov 2026
- Attack
- Over the network · No login needed · Needs someone to click or open something
- Attacker can
- Change some data
- CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N- Sources
- NVD
Description
A vulnerability exists in Rancher before 2.2.4 in the login component, where the errorMsg parameter can be tampered to display arbitrary content, filtering tags but not special characters or symbols. There's no other limitation of the message, allowing malicious users to lure legitimate users to visit phishing sites with scare tactics, e.g., displaying a "This version of Rancher is outdated, please visit https://malicious.rancher.site/upgrading" message.
Affected software
| Software | Affected versions |
|---|---|
RancherServers and applications · cpe:a:suse:rancher |
|