CVE-2023-52137
CVSS 3.1 Score 8.8 of 10 (high)
Details
Summary
CVE-2023-52137 is a command injection vulnerability affecting the [`tj-actions/verify-changed-files`](https://github.com/tj-actions/verify-changed-files) GitHub action. This issue allows attackers to inject commands into the filename parameter, potentially leading to arbitrary code execution and secret leaks like `GITHUB_TOKEN`. The vulnerability arises when the workflow's output value (containing filenames) is used directly in a `run` block. An attacker could exploit this vulnerability by manipulating filenames with special characters, such as `;`, to take over the GitHub Runner and execute malicious commands. The vulnerability has been addressed in versions 17 and 17.0.0 with the default enablement of `safe_output` and the escaping of special characters in filenames for bash environments.
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