CVE-2021-34817

    Dashboard / Vulnerabilities / CVE-2021-34817

    CVE-2021-34817

    Published: 19 Jul 2021Last Modified: 27 Aug 2026

    Summary:

    Details: 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.

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

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 5db0c8d1cfc3f354a5a8badce6d5c3890d428e98
    Fixed -None

    Affected versions

    1.8.13

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2021-34817 | CVE-DB