CVE-2021-37633

    Dashboard / Vulnerabilities / CVE-2021-37633

    CVE-2021-37633

    Published: 9 Aug 2021Last Modified: 9 Jul 2026

    Summary:

    Details: Discourse is an open source discussion platform. In versions prior to 2.7.8 rendering of d-popover tooltips can be susceptible to XSS attacks. This vulnerability only affects sites which have modified or disabled Discourse's default Content Security Policy. This issue is patched in the latest `stable` 2.7.8 version of Discourse. As a workaround users may ensure that the Content Security Policy is enabled, and has not been modified in a way which would make it more vulnerable to XSS attacks.

    References: https://github.com/discourse/discourse/security/advisories/GHSA-v3v8-3m5w-pjp9, https://github.com/discourse/discourse/commit/38199424bc840d2ef002cd1e9bffdbb99191eb47

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -18b6f4ecf6d3513af90b8a54a3514dfa160044d8

    Affected versions

    2.8.0-beta2
    2.8.0-beta3

    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-2021-37633 | CVE-DB