Summary
File upload restriction bypass in Zenario CMS
Zenario CMS 9.2 allows an authenticated admin user to bypass the file upload restriction by creating a new 'File/MIME Types' using the '.phar' extension. Then an attacker can upload a malicious file, intercept the request and change the extension to '.phar' in order to run commands on the server.
Impact
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-2022-23043 has a CVSS score of 7.2 (High). The vector is network-reachable, high 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 (9.2.55826); upgrading removes the vulnerable code path.
Affected versions
Security releases
Kodem intelligence
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. Kodem's runtime-powered SCA identifies whether this CVE is reachable in your applications.
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Frequently Asked Questions
- What is CVE-2022-23043? CVE-2022-23043 is a high-severity unrestricted upload of dangerous file types vulnerability in tribalsystems/zenario (composer), affecting versions < 9.2.55826. It is fixed in 9.2.55826. The application accepts file uploads without adequately restricting the file type or content.
- How severe is CVE-2022-23043? CVE-2022-23043 has a CVSS score of 7.2 (High). 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.
- Which versions of tribalsystems/zenario are affected by CVE-2022-23043? tribalsystems/zenario (composer) versions < 9.2.55826 is affected.
- Is there a fix for CVE-2022-23043? Yes. CVE-2022-23043 is fixed in 9.2.55826. Upgrade to this version or later.
- Is CVE-2022-23043 exploitable, and should I be worried? Whether CVE-2022-23043 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
- What actually determines whether CVE-2022-23043 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.
- How do I fix CVE-2022-23043? Upgrade
tribalsystems/zenarioto 9.2.55826 or later.