CVE-2024-28108

Due to insufficient validation on the contentLink parameter, it is possible for unauthenticated users to inject HTML code to the page which might affect other users. Also, requires that adding new FAQs is allowed for guests and that the admin doesn't check the content of a newly added FAQ.

PoC

1. Browse to ../phpmyfaq/index.php?action=add&cat=0 , enter https://test.com?p=<h1>HTML_INJECTION</h1> for the contentLink parameter.
   

2. Verify the HTML injection by viewing the FAQ itself, “All categories” → “CategoryName” → ”QuestionName”.
   

Attackers can manipulate the appearance and functionality of web pages by injecting malicious HTML code. This can lead to various undesirable outcomes, such as defacing the website, redirecting users to malicious sites, or altering the content to deceive users. Additionally, unauthenticated HTML injection can compromise user privacy by displaying sensitive information or misleading content. It undermines the integrity of the application and erodes user trust, potentially resulting in loss of reputation and credibility.

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-2024-28108 has a CVSS score of 5.1 (Medium). The vector is requires local access, no privileges required, and no user interaction. 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 (3.2.6); upgrading removes the vulnerable code path.

Kodem intelligence

1. What is CVE-2024-28108? CVE-2024-28108 is a medium-severity cross-site scripting (XSS) vulnerability in phpmyfaq/phpmyfaq (composer), affecting versions = 3.2.5. It is fixed in 3.2.6. Untrusted input is rendered as active markup in a victim's browser, which can run script in their session.
2. How severe is CVE-2024-28108? CVE-2024-28108 has a CVSS score of 5.1 (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 phpmyfaq/phpmyfaq are affected by CVE-2024-28108? phpmyfaq/phpmyfaq (composer) versions = 3.2.5 is affected.
4. Is there a fix for CVE-2024-28108? Yes. CVE-2024-28108 is fixed in 3.2.6. Upgrade to this version or later.
5. Is CVE-2024-28108 exploitable, and should I be worried? Whether CVE-2024-28108 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-2024-28108 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-2024-28108? Upgrade phpmyfaq/phpmyfaq to 3.2.6 or later.

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