What’s Vulnerable › Vulnerabilities

CVE-2020-5203

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-03-11 · updated 2026-06-17
• Weakness: CWE-20

Description

In Fat-Free Framework 3.7.1, attackers can achieve arbitrary code execution if developers choose to pass user controlled input (e.g., $_REQUEST, $_GET, or $_POST) to the framework's Clear method.

Affected products

• Fatfreeframework Fat-Free Framework: 3.7.1

References

• https://github.com/bcosca/fatfree-core/commit/dae95a0baf3963a9ef87c17cee52f78f77e21829
• https://github.com/bcosca/fatfree/releases
• https://github.com/bcosca/fatfree-core/commit/dae95a0baf3963a9ef87c17cee52f78f77e21829
• https://github.com/bcosca/fatfree/releases

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