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 SQL payloads that trigger database sleep functions to extract information.
Vulnerability class: SQL Injection
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.004 (30.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 30th percentile — 30.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: +0.000
Affected products
- Vianeos Octopus — versions > V5
Weakness classification (CWE)
References
- www.exploit-db.com/exploits/50078 (exploit)
- www.vianeos.com/en/home-vianeos/ (product)
- vianeos.com/en/products/octopus (product)
- www.vulncheck.com/advisories/vianeos-octopus-loginuser-sqli (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.