CVE-2025-47928

Comprehensive Technical Analysis of CVE-2025-47928

1. Vulnerability Assessment and Severity Evaluation

CVE ID: CVE-2025-47928 CVSS Score: 9.1

The vulnerability in question affects the Spotipy Python library, which interfaces with the Spotify Web API. The issue arises from the use of pull_request_target in the GitHub Actions workflow file .github/workflows/integration_tests.yml. This configuration allows the execution of untrusted code from a pull request (PR) within the context of the base repository, granting full access to secrets such as GITHUB_TOKEN, SPOTIPY_CLIENT_ID, and SPOTIPY_CLIENT_SECRET.

Severity Evaluation:

• CVSS Score: 9.1 (Critical)
• Impact: High
• Exploitability: High

The high CVSS score indicates a critical vulnerability due to the potential for complete repository takeover and exfiltration of sensitive secrets.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

1. Malicious Pull Request: An attacker can submit a pull request with malicious code designed to exploit the pull_request_target configuration.
2. Secret Exfiltration: The malicious code can exfiltrate secrets such as GITHUB_TOKEN, SPOTIPY_CLIENT_ID, and SPOTIPY_CLIENT_SECRET.
3. Repository Takeover: Using the exfiltrated GITHUB_TOKEN, the attacker can gain write access to the repository, potentially leading to a complete takeover.

Exploitation Methods:

• Code Injection: Inject malicious code into the PR that, when executed, captures and exfiltrates secrets.
• Token Misuse: Use the captured GITHUB_TOKEN to perform unauthorized actions within the repository.

3. Affected Systems and Software Versions

Affected Systems:

• GitHub repositories using the Spotipy library with the vulnerable GitHub Actions workflow configuration.

Software Versions:

• Spotipy library versions that include the commit 4f5759dbfb4506c7b6280572a4db1aabc1ac778d.

Mitigated Versions:

• The issue was reverted in commit 9dfb7177b8d7bb98a5a6014f8e6436812a47576f.

4. Recommended Mitigation Strategies

1. Revert Vulnerable Commit: Ensure that the commit 9dfb7177b8d7bb98a5a6014f8e6436812a47576f is applied to revert the vulnerable changes.
2. Review GitHub Actions Workflows: Audit all GitHub Actions workflows to ensure they do not use pull_request_target in a way that allows untrusted code execution.
3. Limit Secret Access: Restrict the scope of secrets and tokens to the minimum necessary permissions.
4. Regular Security Audits: Conduct regular security audits of GitHub Actions workflows and other CI/CD pipelines.
5. Monitor for Suspicious Activity: Implement monitoring to detect and respond to any suspicious activity related to repository access and secret usage.

5. Impact on Cybersecurity Landscape

This vulnerability highlights the risks associated with CI/CD pipelines and the importance of securing GitHub Actions workflows. It underscores the need for:

• Strict Access Controls: Ensuring that secrets and tokens are not exposed to untrusted code.
• Code Review Processes: Enhancing code review processes to detect and mitigate potential security issues.
• Continuous Monitoring: Implementing continuous monitoring and alerting for suspicious activities in CI/CD pipelines.

6. Technical Details for Security Professionals

Vulnerable Configuration:

name: Integration Tests
on:
  pull_request_target:
    types: [opened, synchronize]
jobs:
  test:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
        with:
          ref: ${{ github.event.pull_request.head.sha }}
      - name: Run tests
        run: |
          # Test commands here

Mitigation Commit:

• The commit 9dfb7177b8d7bb98a5a6014f8e6436812a47576f reverts the changes introduced by 4f5759dbfb4506c7b6280572a4db1aabc1ac778d, effectively mitigating the vulnerability.

References:

• Vulnerable Commit
• Mitigation Commit
• Security Advisory

Conclusion: The CVE-2025-47928 highlights the critical importance of securing CI/CD pipelines and GitHub Actions workflows. Organizations should prioritize the implementation of robust security measures to prevent unauthorized access and potential repository takeovers. Regular audits, strict access controls, and continuous monitoring are essential to mitigate such vulnerabilities effectively.