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    CVE-2021-32821

    MooTools is a collection of JavaScript utilities for JavaScript developers. All known versions include a CSS selector parser that is vulnerable to Regular Expression Denial of Service (ReDoS). An attack requires that an attacker can inject a string into a CSS selector at runtime, which is quite common with e.g. jQuery CSS selectors. No patches are available for this issue.

    Published:Jan 3, 2023
    Last Modified:Mar 10, 2025
    EPS:Jan 3, 2023
    EPSS Score:0.00565
    CVSS Score:6.2

    Affected Products

    Vendor
    Mootools
    Product
    Mootools

    Exploits

    https://securitylab.github.com/advisories/GHSL-2020-345-redos-mootools/https://securitylab.github.com/advisories/GHSL-2020-345-redos-mootools/

    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