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Findings

CVE-2023-30623

Arbitrary command injection in embano1/wip

Published Apr 24, 2023 · corrected/updated Sep 10, 2026 · evidence confidence high

## Summary The action uses the parameter in an insecure way. The title parameter is used in a run statement - resulting in a command injection vulnerability due to string interpolation. ## Details and Impact This vulnerability can be triggered by any user on GitHub. They just need to create a pull request with a commit message containing an exploit. (Note that first-time PR requests will not be run - but the attacker can submit a valid PR before submitting an invalid PR). The commit can be genuine, but the commit message can be malicious. This can be used to execute code on the GitHub runners (potentially use it for crypto-mining, and waste your resources) and can be used to exfiltrate any secrets that you use in the CI pipeline (including repository tokens). [Here](https://securitylab.github.com/research/github-actions-untrusted-input/) is a set of blog posts by Github's security team explaining this issue. ## How to update existing workflows Replace the following line in your workflow using this action with the branch name or commit pointing to this branch: Or using the exact commit:

Grounded briefings

Catalog interpretations for three audiences. Each brief cites ingested metadata and the original advisories below. They are not independent research and they do not invent exploit steps.

Executive

CVE-2023-30623 is a high public vulnerability record for this product. It is not currently listed in the CISA Known Exploited catalog. Check the linked vendor or CERT advisories for patch status. This summary is a catalog interpretation of the ingested metadata and cites the original advisories below.

System administrator

Identify whether this product is in your estate, then compare installed versions with the affected ranges. Affected packages or ranges on record: embano1/wip (0 → 2). Check the linked vendor or CERT advisories for patch status. Prefer the vendor or distribution advisory linked in Sources before changing production systems. This is a catalog interpretation, not a runbook.

Security analyst

Signals on file: CVSS 8.8, EPSS 3.7%. It is not currently listed in the CISA Known Exploited catalog. Weakness classes: CWE-77. Sources contributing to this record: cve_org, epss, github, osv. Public exploit references, when present, are outbound links only and are not proof of active exploitation. This is a catalog interpretation of stored metadata.

Exploitation and remediation

  • Exploitation evidence

    Not listed as known exploited in CISA KEV. Not in CISA KEV or VulnCheck KEV.

  • Patch and remediation

    No required-action text is stored yet. Use the vendor or CERT links in Sources for patch availability.

  • Safe detection guidance

    Compare installed versions with the affected ranges below and verify the advisory from the original publisher. This site stores metadata and outbound links only; it does not ship exploit code or proof-of-concept payloads.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Apr 24, 2023 · GitHub Advisory Database

    Detected

    ## Summary The action uses the parameter in an insecure way. The title parameter is used in a run statement - resulting in a command injection vulnerability due to string interpolation. ## Details and Impact This vulnerability can be triggered by any user on GitHub. They just need to create a pull request with a commit message containing an exploit. (Note that first-time PR requests will not be ru

  2. Sep 10, 2026 · GitHub Advisory Database

    Fix available

    embano1/wip fixed in 2

  3. Sep 10, 2026 · GitHub Advisory Database

    Fix available

    embano1/wip fixed in 2

  4. Sep 10, 2026 · GitHub Advisory Database

    Updated

    ## Summary The action uses the parameter in an insecure way. The title parameter is used in a run statement - resulting in a command injection vulnerability due to string interpolation. ## Details and Impact This vulnerability can be triggered by any user on GitHub. They just need to create a pull request with a commit message containing an exploit. (Note that first-time PR requests will not be ru

Affected

  • GitHub Actions embano1/wip0 → 2

Sources

References