CVE-2023-49291 – Improper Sanitization of Branch Name Leads to Arbitrary Code Injection

https://notcve.org/view.php?id=CVE-2023-49291

04 Dec 2023 — tj-actions/branch-names is a Github action to retrieve branch or tag names with support for all events. The `tj-actions/branch-names` GitHub Actions improperly references the `github.event.pull_request.head.ref` and `github.head_ref` context variables within a GitHub Actions `run` step. The head ref variable is the branch name and can be used to execute arbitrary code using a specially crafted branch name. As a result an attacker can use this vulnerability to steal secrets from or abuse `GITHUB_TOKEN` permi... • https://github.com/tj-actions/branch-names/commit/4923d1ca41f928c24f1c1b3af9daaadfb71e6337 • CWE-20: Improper Input Validation •