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Tag: Security Research

  • Oct 12, 2026

    FreePBX 17: From SQL Injection to Remote Code Execution

    advisories / static analysis

    There is no excerpt because this is a protected post.

  • Oct 12, 2026

    Ten Years Later, A2Billing Still Had a Few Surprises

    advisories / static analysis

    I returned to A2Billing a decade after writing about it and found pre-auth SQL injection and an authenticated code-execution chain. Here is how the research unfolded.

© 2026 Ahmed Sultan (0x4148)

Knowledge isn't an object. It's a flow.

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