CVE-2022-27139 is a critical-severity unrestricted upload of dangerous file types vulnerability in ghost (npm), affecting versions <= 4.39.0. No fixed version is listed yet.
An arbitrary file upload vulnerability in the file upload module of Ghost v4.39.0 allows attackers to execute arbitrary code via a crafted SVG file.
The application accepts file uploads without adequately restricting the file type or content. Typical impact: remote code execution if the uploaded file can be served and executed on the server.
CVE-2022-27139 has a CVSS score of 9.8 (Critical). 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.
No fixed version is listed yet, so configuration controls and monitoring matter more in the interim.
npm
ghost (<= 4.39.0)Severity tells you how bad this could be in the worst case. It does not tell you whether you are exposed. Exploitability and impact are functions of runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A vulnerable package can sit in your dependency tree and never run.
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 instead of chasing every advisory.
Kodem's runtime-powered SCA identifies whether CVE-2022-27139 is reachable in your applications. Explore open-source security for your team.
See if CVE-2022-27139 is reachable in your applications. Get a demo
Already deployed Kodem? See CVE-2022-27139 in your environment →No fixed version is listed for CVE-2022-27139 yet.
In the interim: Validate file type by inspecting the content, not just the extension or MIME type declared by the client. Store uploads outside the web root.
Kodem Kai can prioritize this vulnerability in your dependency tree and generate a fix recommendation.
CVE-2022-27139 is a critical-severity unrestricted upload of dangerous file types vulnerability in ghost (npm), affecting versions <= 4.39.0. No fixed version is listed yet. The application accepts file uploads without adequately restricting the file type or content.
CVE-2022-27139 has a CVSS score of 9.8 (Critical). 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.
ghost (npm) versions <= 4.39.0 is affected.
No fixed version is listed for CVE-2022-27139 yet. Monitor the advisory for updates and apply mitigations in the interim.
Whether CVE-2022-27139 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
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.
No fixed version is listed yet. In the interim: Validate file type by inspecting the content, not just the extension or MIME type declared by the client. Store uploads outside the web root.