CVE-2023-36473

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    CVE-2023-36473

    Published: 13 Jul 2023Last Modified: 29 Sept 2026

    Summary: CSP nonce reuse vulnerability in Discourse

    Details: Discourse is an open source discussion platform. A CSP (Content Security Policy) nonce reuse vulnerability could allow XSS attacks to bypass CSP protection. There are no known XSS vectors at the moment, but should one be discovered, this vulnerability would allow the XSS attack to completely bypass CSP. The vulnerability is patched in the latest tests-passed, beta and stable branches.

    References: https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/36xxx/CVE-2023-36473.json, https://github.com/discourse/discourse/security/advisories/GHSA-9f52-624j-8ppq, https://nvd.nist.gov/vuln/detail/CVE-2023-36473

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 461966e0284875bf0eea7fc51b4fffc225c9275c
    Fixed -None

    Affected versions

    stable >= 3.0.5

    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-2023-36473 | CVE-DB