CVE-2024-7738 in vscode-markdown-pdf
Summary
by MITRE • 08/13/2024
A vulnerability, which was classified as problematic, has been found in yzane vscode-markdown-pdf 1.5.0. Affected by this issue is some unknown functionality of the component Markdown File Handler. The manipulation leads to pathname traversal. Attacking locally is a requirement. The exploit has been disclosed to the public and may be used.
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Analysis
by VulDB Data Team • 09/02/2025
The vulnerability identified as CVE-2024-7738 represents a significant security flaw within the yzane vscode-markdown-pdf extension version 1.5.0, specifically affecting the Markdown File Handler component. This issue falls under the category of path traversal vulnerabilities, which are particularly dangerous when they occur in development environment tools where local privilege escalation and code execution opportunities may exist. The vulnerability's classification as problematic indicates that it poses a substantial risk to systems where the affected extension is installed, particularly in environments where developers may have elevated privileges or where the extension is used in automated build processes.
The technical flaw manifests through pathname traversal mechanisms that allow an attacker to manipulate file paths within the Markdown processing functionality. This vulnerability specifically affects the Markdown File Handler component, which is responsible for processing markdown files and converting them to PDF format within the Visual Studio Code environment. When exploited, the vulnerability enables attackers to traverse directory structures and potentially access or manipulate files that should remain restricted. The attack vector requires local access to the system, meaning that an attacker must already have a foothold on the machine where the extension is installed, typically through user interaction or a compromised development environment.
The operational impact of this vulnerability extends beyond simple file access restrictions, as it could potentially enable attackers to read sensitive configuration files, access source code repositories, or even execute malicious code within the context of the user's development environment. This becomes particularly concerning in enterprise development environments where the extension might be used to process sensitive documentation or where automated security scanning tools might be integrated. The public disclosure of this exploit increases the risk profile significantly, as it provides threat actors with readily available attack vectors that can be leveraged against vulnerable systems. The vulnerability's presence in a widely-used extension like vscode-markdown-pdf means that numerous developers and organizations could be at risk, particularly those who do not maintain up-to-date security practices or who have not implemented proper access controls.
Security mitigations for CVE-2024-7738 should focus on immediate remediation through updating to a patched version of the vscode-markdown-pdf extension, as well as implementing additional security controls such as restricting local system access for development environments and ensuring proper sandboxing of development tools. Organizations should also consider implementing automated security scanning tools that can detect and prevent the installation of vulnerable extensions. The vulnerability aligns with CWE-22 Path Traversal and follows patterns consistent with ATT&CK technique T1059 Command and Scripting Interpreter, where local execution capabilities can be leveraged to escalate privileges or access sensitive data. Given the nature of the vulnerability, it is recommended that users immediately disable or remove the affected extension until a patched version is available, and that organizations implement security awareness training to prevent social engineering attacks that might lead to installation of vulnerable software.
The public disclosure of this exploit creates an urgent security concern for all users of the affected extension, as it represents a clear attack surface that threat actors can leverage to gain unauthorized access to development environments. The local attack requirement does not diminish the severity, as most development environments contain sensitive information and privileged access that can be exploited once an attacker has established a foothold. Security teams should monitor for any exploitation attempts and implement network-based detection mechanisms to identify potential abuse of this vulnerability. The vulnerability also highlights the importance of proper input validation and secure coding practices in development tools, particularly those that handle file system operations.