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CVE-2021-34817

Date: July 19, 2021

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.

Language: JS

Severity Score

Related Resources (6)

https://github.com/ether/etherpad-lite/commit/a7968115581e20ef47a533e030f59f830486bdfa
https://nvd.nist.gov/vuln/detail/CVE-2021-34817
https://github.com/ether/etherpad-lite/releases/tag/1.8.14
https://blog.sonarsource.com/etherpad-code-execution-vulnerabilities
https://etherpad.org/#download
https://www.mend.io/vulnerability-database/CVE-2021-34817

Severity Score

Weakness Type (CWE)

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

CWE-79

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): CHANGED
Confidentiality (C): LOW
Integrity (I): LOW
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): PARTIAL
Availability (A): NONE
Additional information:

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