GHSA-634p-93h9-92vh ghas-to-csv vulnerable to Improper Neutralization of Formula Elements in a CSV File

• GitHub Actions some-natalie/ghas-to-csv: < 1 → fixed in 1

Impact This GitHub Action creates a CSV file without sanitizing the output of the APIs. If an alert is dismissed or any other custom field contains executable code / formulas, it might be run when an endpoint opens that CSV file in a spreadsheet program. The data flow looks like this 👇🏻 ```mermaid graph TD A(Repository) -->|developer dismissal, other data input| B(GitHub Advanced Security data) B -->|ghas-to-csv| C(CSV file) C -->|spreadsheet program| D(endpoint executes potentially malicious code) ``` Patches Please use version `v1` or later. That tag moves from using `csv` to `defusedcsv` to mitigate this problem. Workarounds There is no workaround. Please upgrade to using the latest tag, `v1` (or later). References • CWE-1236 information from MITRE • CSV injection information from OWASP • CodeQL query for CWE-1236 in Python here • PyPI site for `defusedcsv` here For more information If you have any questions or comments about this advisory: • Open an issue in this repository here