BIT-discourse-2023-45806

    Dashboard / Vulnerabilities / BIT-discourse-2023-45806

    BIT-discourse-2023-45806

    Published: 6 Mar 2024Last Modified: 8 Sept 2026

    Summary: Discourse vulnerable to DoS via Regexp Injection in Full Name

    Details: Discourse is an open source platform for community discussion. Prior to version 3.1.3 of the `stable` branch and version 3.2.0.beta3 of the `beta` and `tests-passed` branches, if a user has been quoted and uses a `|` in their full name, they might be able to trigger a bug that generates a lot of duplicate content in all the posts they've been quoted by updating their full name again. Version 3.1.3 of the `stable` branch and version 3.2.0.beta3 of the `beta` and `tests-passed` branches contain a patch for this issue. No known workaround exists, although one can stop the "bleeding" by ensuring users only use alphanumeric characters in their full name field.

    References: https://github.com/discourse/discourse/commit/2ec25105179199cf80912bf011c18b8b870e1863, https://github.com/discourse/discourse/commit/7d484864fe91ff79c478f57e7ddb1235d701921e, https://github.com/discourse/discourse/security/advisories/GHSA-hcgf-hg2g-mw78, https://nvd.nist.gov/vuln/detail/CVE-2023-45806

    Affected packages

    Package

    Name: discourse

    Purl: pkg:bitnami/discourse

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0
    Fixed -3.2.0

    Affected versions

    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
    BIT-discourse-2023-45806 | CVE-DB