TCPDF Security Flaw in SSL Verification Settings

CVE-2024-56521

What is CVE-2024-56521?

A security issue has been identified in TCPDF versions before 6.8.0, which arises when using libcurl for SSL communication. The problem lies in the unsafe configuration of SSL verification settings, specifically the misuse of CURLOPT_SSL_VERIFYHOST and CURLOPT_SSL_VERIFYPEER parameters. This misconfiguration can lead to potential security risks, including the possibility of man-in-the-middle attacks, compromising the integrity and confidentiality of data transmitted over secure connections. It is critical for developers and organizations using affected versions of TCPDF to update to version 6.8.0 or later to mitigate these risks. For more details, you can find additional information in the official TCPDF documentation and GitHub repositories.

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