Vulnerability CVE-2021-42650
Published: 2021-10-18

Description:
Cross Site Scripting (XSS vulnerability exists in Portainer before 2.9.1 via the node input box in Custom Templates.

Type:

CWE-79

 (Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'))

CVSS2 => (AV:N/AC:M/Au:N/C:N/I:P/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.3/10
2.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
None
Partial
None
Affected software
Portainer -> Portainer 

 References:
https://github.com/portainer/portainer/pull/5766
https://github.com/purple-WL/Security-vulnerability/blob/main/Portainer%20Custom%20Templates%20xss
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