Mozilla Geckodriver vulnerabilities

2 CVEs affecting Mozilla Geckodriver, 0 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2021-4138, published 2022-05-02.

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Known exploited (CISA KEV) first, then by EPSS exploit probability.

• CVE-2020-15660, published 2021-07-20. High severity, CVSS 8.8. EPSS: 1.1% chance of exploitation in the next 30 days. Missing checks on Content-Type headers in geckodriver before 0.27.0 could lead to a CSRF vulnerability, that might, when paired with a specifically prepared request, lead to remote code execution.
• CVE-2021-4138, published 2022-05-02. Medium severity, CVSS 5.3. EPSS: 0.8% chance of exploitation in the next 30 days. Improved Host header checks to reject requests not sent to a well-known local hostname or IP, or the server-specified hostname.