CVE-2023-43648

There is a Directory Traversal Vulnerability in Form submission data management Feature to baserCMS.

This is a vulnerability that needs to be addressed when the management system is used by an unspecified number of users.
If you are eligible, please update to the new version as soon as possible.

Target

baserCMS 4.7.8 and earlier versions

Vulnerability

There is a possibility that information on the server may be obtained by a user who is logged in to the management screen.

Countermeasures

Update to the latest version of baserCMS

Please refer to the following page to reference for more information.
https://basercms.net/security/JVN_45547161

Credits

Shiga Takuma@BroadBand Security, Inc

Input manipulates file paths to reach files outside the intended directory, such as configuration or credential files. Typical impact: unauthorized file read or write outside the intended directory.

CVE-2023-43648 has a CVSS score of 4.9 (Medium). 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 (4.8.0); upgrading removes the vulnerable code path.

Kodem intelligence

1. What is CVE-2023-43648? CVE-2023-43648 is a medium-severity path traversal vulnerability in baserproject/basercms (composer), affecting versions < 4.8.0. It is fixed in 4.8.0. Input manipulates file paths to reach files outside the intended directory, such as configuration or credential files.
2. How severe is CVE-2023-43648? CVE-2023-43648 has a CVSS score of 4.9 (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 versions of baserproject/basercms are affected by CVE-2023-43648? baserproject/basercms (composer) versions < 4.8.0 is affected.
4. Is there a fix for CVE-2023-43648? Yes. CVE-2023-43648 is fixed in 4.8.0. Upgrade to this version or later.
5. Is CVE-2023-43648 exploitable, and should I be worried? Whether CVE-2023-43648 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-2023-43648 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-2023-43648? Upgrade baserproject/basercms to 4.8.0 or later.