Arbitrary file upload in Testlink

CVE-2020-8639

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.

Vulnerability class: Unrestricted File Upload

EPSS: 0.159 (96.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

  • Testlink — versions 1.9.20
  • N/a — versions n/a

Weakness classification (CWE)

Public proof-of-concept exploits

References

  • cve@mitre.org (Exploit, Patch, Third Party Advisory, x_refsource_MISC)
  • cve@mitre.org (x_refsource_CONFIRM, Patch, Third Party Advisory)
  • cve@mitre.org (Exploit, VDB Entry, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2020-8639?
CVE-2020-8639 is a high-severity vulnerability in Testlink, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2020-04-03.
How severe is CVE-2020-8639?
High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2020-8639 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.