BIT-discourse-2023-46130

    Dashboard / Vulnerabilities / BIT-discourse-2023-46130

    BIT-discourse-2023-46130

    Published: 6 Mar 2024Last Modified: 8 Sept 2026

    Summary: Bypassing height value allowed in some theme components

    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, some theme components allow users to add svgs with unlimited `height` attributes, and this can affect the availability of subsequent replies in a topic. Most Discourse instances are unaffected, only instances with the svgbob or the mermaid theme component are within scope. The issue is patched in version 3.1.3 of the `stable` branch and version 3.2.0.beta3 of the `beta` and `tests-passed` branches. As a workaround, disable or remove the relevant theme components.

    References: https://github.com/discourse/discourse/commit/6183d9633de873ac2b1e9cdb6ac1c94b4ffae9cb, https://github.com/discourse/discourse/commit/89a2e60706ce22e4afc463d03af2f34c53291800, https://github.com/discourse/discourse/security/advisories/GHSA-c876-638r-vfcg, https://nvd.nist.gov/vuln/detail/CVE-2023-46130

    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-2023-46130 | CVE-DB