CVE-2024-47536

A user with the editmyprivateinfo right or who can otherwise change their name can XSS themselves by setting their "real name" to an XSS payload.

Details

Here's the offending line:
https://github.com/StarCitizenTools/mediawiki-skins-Citizen/blob/d45c3d69f30863f622f16eb40dd41d3ca943454a/includes/Components/CitizenComponentUserInfo.php#L137

This was introduced in 717d16af35b10dab04d434aefddbf991fc8c168c

PoC

1. Login
2. Go to Special:Preferences
3. Set the real name field to a string like <script>alert("Admin with a propensity for self-XSSes")</script>
4. Save your settings and use Citizen if it's not being used already

Any user who can change their name (whether it's through the editmyprivateinfo right or through other means) can add XSS payloads that trigger for themselves only.

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-2024-47536 has a CVSS score of 4.6 (Medium). The vector is network-reachable, low 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 (2.31.0); upgrading removes the vulnerable code path.

Kodem intelligence

1. What is CVE-2024-47536? CVE-2024-47536 is a medium-severity cross-site scripting (XSS) vulnerability in starcitizentools/citizen-skin (composer), affecting versions >= 2.6.3, < 2.31.0. It is fixed in 2.31.0. Untrusted input is rendered as active markup in a victim's browser, which can run script in their session.
2. How severe is CVE-2024-47536? CVE-2024-47536 has a CVSS score of 4.6 (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 starcitizentools/citizen-skin are affected by CVE-2024-47536? starcitizentools/citizen-skin (composer) versions >= 2.6.3, < 2.31.0 is affected.
4. Is there a fix for CVE-2024-47536? Yes. CVE-2024-47536 is fixed in 2.31.0. Upgrade to this version or later.
5. Is CVE-2024-47536 exploitable, and should I be worried? Whether CVE-2024-47536 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-2024-47536 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-2024-47536? Upgrade starcitizentools/citizen-skin to 2.31.0 or later.