CVE-2022-39270

    Dashboard / Vulnerabilities / CVE-2022-39270

    CVE-2022-39270

    Published: 6 Oct 2022Last Modified: 12 Aug 2026

    Summary: Arbitrary HTML injection in table-of-contents theme component in DiscoTOC

    Details: DiscoTOC is a Discourse theme component that generates a table of contents for topics. Users that can create topics in TOC-enabled categories (and have sufficient trust level - configured in component's settings) are able to inject arbitrary HTML on that topic's page. The issue has been fixed on the `main` branch. Admins can update the theme component through the admin UI (Customize -> Themes -> Components -> DiscoTOC -> Check for Updates). Alternatively, admins can temporarily disable the DiscoTOC theme component.

    References: https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/39xxx/CVE-2022-39270.json, https://github.com/discourse/DiscoTOC/security/advisories/GHSA-m44p-w923-w32h, https://nvd.nist.gov/vuln/detail/CVE-2022-39270, https://github.com/discourse/DiscoTOC/commit/f80c215a283cd045d2a371403e6eba88b2911192

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -f80c215a283cd045d2a371403e6eba88b2911192

    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
    CVE-2022-39270 | CVE-DB