CVE-2021-39433

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 8.7% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2021-10-04 · updated 2026-06-17

Description

A local file inclusion (LFI) vulnerability exists in version BIQS IT Biqs-drive v1.83 and below when sending a specific payload as the file parameter to download/index.php. This allows the attacker to read arbitrary files from the server with the permissions of the configured web-user.

Affected products

Biqsdrive: through 1.83

References

https://biqs-drive.be/
https://github.com/PinkDraconian/CVE-2021-39433/blob/main/README.md
https://biqs-drive.be/
https://github.com/PinkDraconian/CVE-2021-39433/blob/main/README.md

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