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    CVE-2021-22567

    Bidirectional Unicode text can be interpreted and compiled differently than how it appears in editors which can be exploited to get nefarious code passed a code review by appearing benign. An attacker could embed a source that is invisible to a code reviewer that modifies the behavior of a program in unexpected ways.

    Published:Jan 5, 2022
    Last Modified:Apr 21, 2025
    EPS:Jan 5, 2022
    EPSS Score:0.00228
    CVSS Score:4.6

    Affected Products

    Vendor
    Dart
    Product
    Dart Software Development Kit

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-284 Improper Access Control

    Related CVEs

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    CVE-2022-3095 (CVSS 9.8) — The implementation of backslash parsing in the Dart URI class for versions prior to 2.18 and Flutter versions …
    CVE-2022-0451 (CVSS 6.5) — Dart SDK contains the HTTPClient in dart:io library whcih includes authorization headers when handling cross o…
    CVE-2021-22568 (CVSS 8.8) — When using the dart pub publish command to publish a package to a third-party package server, the request woul…
    CVE-2021-22540 (CVSS 6.1) — Bad validation logic in the Dart SDK versions prior to 2.12.3 allow an attacker to use an XSS attack via DOM c…
    CVE-2020-8923 (CVSS 5.4) — An improper HTML sanitization in Dart versions up to and including 2.7.1 and dev versions 2.8.0-dev.16.0, allo…

    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