What is CVE-2021-47801?

CVE-2021-47801 is a high-severity vulnerability in Vianeos Octopus, classified under SQL Injection. CVSS score: 8.2/10. Published 2026-01-16.

How severe is CVE-2021-47801?

High severity. CVSS v3 base score is 8.2 out of 10.

SQL Injection in Vianeos Octopus

CVE-2021-47801

Vianeos OctoPUS 5 contains a time-based blind SQL injection vulnerability in the 'login_user' parameter during authentication requests. Attackers can exploit this vulnerability by crafting malicious POST requests with specially constructed…

Vulnerability class: SQL Injection

EPSS: 0.004 (26.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N.

Affected products

Vianeos Octopus — versions > V5

Weakness classification (CWE)

CWE-89 — SQL Injection

References

disclosure@vulncheck.com (exploit)
disclosure@vulncheck.com (product)
disclosure@vulncheck.com (product)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2021-47801?: CVE-2021-47801 is a high-severity vulnerability in Vianeos Octopus, classified under SQL Injection. CVSS score: 8.2/10. Published 2026-01-16.
How severe is CVE-2021-47801?: High severity. CVSS v3 base score is 8.2 out of 10.