What’s Vulnerable › Vulnerabilities

CVE-2020-20979

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-08-12 · updated 2026-06-17
• Weakness: CWE-434

Description

An arbitrary file upload vulnerability in the move_uploaded_file() function of LJCMS v4.3 allows attackers to execute arbitrary code.

Affected products

• 8Cms Ljcms: 4.3.-

References

• https://github.com/0xyu/PHP_Learning/issues/2
• https://github.com/0xyu/PHP_Learning/issues/2

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