CVE-2017-14775

Laravel Sensitive Data Exposure

Laravel before 5.5.10 mishandles the remember_me token verification process because DatabaseUserProvider does not have constant-time token comparison.

CVE-2017-14775 has a CVSS score of 5.9 (Medium). The vector is network-reachable, 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 (5.5.10); upgrading removes the vulnerable code path.

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1. What is CVE-2017-14775? CVE-2017-14775 is a medium-severity security vulnerability in laravel/framework (composer), affecting versions < 5.5.10. It is fixed in 5.5.10.
2. How severe is CVE-2017-14775? CVE-2017-14775 has a CVSS score of 5.9 (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 packages are affected by CVE-2017-14775?
   • laravel/framework (composer) (versions < 5.5.10)
   • illuminate/auth (composer) (versions < 5.5.10)
4. Is there a fix for CVE-2017-14775? Yes. CVE-2017-14775 is fixed in 5.5.10. Upgrade to this version or later.
5. Is CVE-2017-14775 exploitable, and should I be worried? Whether CVE-2017-14775 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-2017-14775 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-2017-14775?
   • Upgrade laravel/framework to 5.5.10 or later
   • Upgrade illuminate/auth to 5.5.10 or later

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