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CVSS Score
-| Package Name | Ecosystem | Vulnerable Versions | First Patched Version |
|---|---|---|---|
| baserproject/basercms | composer | >= 4.0.0, <= 4.1.0.1 | |
| baserproject/basercms | composer | <= 3.0.15 |
The vulnerability stems from improper access control around PHP code execution in fixed pages. The advisories explicitly link the issue to PHP code handling in fixed pages and provide a configuration flag ('BcApp.allowedPhpOtherThanAdmins') to restrict non-admin access. The FixedPagesController's edit action would be the logical entry point for content modification, while BcBaserHelper's PHP evaluation function would directly process untrusted input. The combination of these components creates an OS command injection vector when attackers inject PHP code containing system()/exec() calls.
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