What’s Vulnerable › Vulnerabilities

CVE-2020-8639

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 15.9% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-04-03 · updated 2026-06-17
• Weakness: CWE-434

Description

An unrestricted file upload vulnerability in keywordsImport.php in TestLink 1.9.20 allows remote attackers to execute arbitrary code by uploading a file with an executable extension. This allows an authenticated attacker to upload a malicious file (containing PHP code to execute operating system commands) to a publicly accessible directory of the application.

Affected products

• Testlink: 1.9.20

References

• http://packetstormsecurity.com/files/161401/TestLink-1.9.20-Shell-Upload.html
• https://ackcent.com/blog/testlink-1.9.20-unrestricted-file-upload-and-sql-injection/
• https://github.com/TestLinkOpenSourceTRMS/testlink-code/commit/57d81ae350d569c5c95087997fe051c49e14516d
• http://packetstormsecurity.com/files/161401/TestLink-1.9.20-Shell-Upload.html
• https://ackcent.com/blog/testlink-1.9.20-unrestricted-file-upload-and-sql-injection/
• https://github.com/TestLinkOpenSourceTRMS/testlink-code/commit/57d81ae350d569c5c95087997fe051c49e14516d

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