CVE-2023-40024

Scancode.io Reflected Cross-Site Scripting (XSS) in license endpoint

def license_details_view(request, key):
    """
    Display all available information about a given license `key` followed by
    the full license text.
    """
    licenses = get_licenses()
    try:
        data = saneyaml.dump(licenses[key].to_dict())
        text = licenses[key].text
    except KeyError:
        return HttpResponseNotFound(f"License {key} not found.") # Leads to cross-site scripting when key is malicious javascript
    return HttpResponse(f"<pre>{data}</pre><hr><pre>{text}</pre>")

Attackers can exploit the vulnerability to inject malicious scripts into the response generated by the license_details_view function. When unsuspecting users visit the page, their browsers will execute the injected scripts, leading to unauthorized actions, session hijacking, or stealing sensitive information.

Untrusted input is rendered as active markup in a victim's browser, which can run script in their session. Typical impact: session or credential theft, and actions taken as the user.

CVE-2023-40024 has a CVSS score of 6.1 (Medium). The vector is network-reachable, no privileges required, and user interaction required. A CVSS score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether this affects your application depends on whether the vulnerable code is present and reachable in your environment. A fixed version is available (32.5.2); upgrading removes the vulnerable code path.

Kodem intelligence

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1. What is CVE-2023-40024? CVE-2023-40024 is a medium-severity cross-site scripting (XSS) vulnerability in scancodeio (pip), affecting versions <= 32.5.1. It is fixed in 32.5.2. Untrusted input is rendered as active markup in a victim's browser, which can run script in their session.
2. How severe is CVE-2023-40024? CVE-2023-40024 has a CVSS score of 6.1 (Medium). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.
3. Which versions of scancodeio are affected by CVE-2023-40024? scancodeio (pip) versions <= 32.5.1 is affected.
4. Is there a fix for CVE-2023-40024? Yes. CVE-2023-40024 is fixed in 32.5.2. Upgrade to this version or later.
5. Is CVE-2023-40024 exploitable, and should I be worried? Whether CVE-2023-40024 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
6. What actually determines whether CVE-2023-40024 is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
7. How do I fix CVE-2023-40024? Upgrade scancodeio to 32.5.2 or later.

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