Vulnerability CVE-2021-34817
Published: 2021-07-19

Description:
A Cross-Site Scripting (XSS) issue in the chat component of Etherpad 1.8.13 allows remote attackers to inject arbitrary JavaScript or HTML by importing a crafted pad.

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
Etherpad -> Etherpad 

 References:
https://etherpad.org/#download
https://github.com/ether/etherpad-lite/commit/a7968115581e20ef47a533e030f59f830486bdfa
https://blog.sonarsource.com/etherpad-code-execution-vulnerabilities
https://github.com/ether/etherpad-lite/releases/tag/1.8.14
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