CVE-2021-20727

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    CVE-2021-20727

    Published: 27 May 2021Last Modified: 8 Jul 2026

    Summary:

    Details: Cross-site scripting vulnerability in Zettlr from 0.20.0 to 1.8.8 allows an attacker to execute an arbitrary script by loading a file or code snippet containing an invalid iframe into Zettlr.

    References: https://www.zettlr.com/, https://github.com/Zettlr/Zettlr, https://jvn.jp/en/jp/JVN98239374/index.html

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 3beb5ccc97da020b1b48a256c1cfd1a146514710
    Fixed -None

    Affected versions

    v1.8.8
    v1.8.7
    v1.8.6
    v1.8.5
    v1.8.4
    v1.8.3
    v1.8.2
    v1.8.1
    v1.8.0
    v1.8.0-alpha

    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-2021-20727 | CVE-DB