CVE-2021-39433

Biqsdrive vulnerability

CVSS

7.5

EPSS

8.2%

EPSS pct

94th

Exploited

No known

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 vendor

Biqs

Affected product

Biqsdrive

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Published

2021-10-04

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality.

Its EPSS score of 8.2% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 94% of all scored CVEs.

Check your external exposure to CVE-2021-39433

Confirm whether Biqs Biqsdrive is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2021-39433.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2021-39433

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2021-39433 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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