BIT-discourse-2021-41163

    Dashboard / Vulnerabilities / BIT-discourse-2021-41163

    BIT-discourse-2021-41163

    Published: 6 Mar 2024Last Modified: 8 Sept 2026

    Summary: RCE via malicious SNS subscription payload

    Details: Discourse is an open source platform for community discussion. In affected versions maliciously crafted requests could lead to remote code execution. This resulted from a lack of validation in subscribe_url values. This issue is patched in the latest stable, beta and tests-passed versions of Discourse. To workaround the issue without updating, requests with a path starting /webhooks/aws path could be blocked at an upstream proxy.

    References: https://github.com/discourse/discourse/commit/fa3c46cf079d28b086fe1025349bb00223a5d5e9, https://github.com/discourse/discourse/security/advisories/GHSA-jcjx-pvpc-qgwq, https://nvd.nist.gov/vuln/detail/CVE-2021-41163

    Affected packages

    Package

    Name: discourse

    Purl: pkg:bitnami/discourse

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0
    Fixed -2.7.9

    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