What’s Vulnerable › Vulnerabilities

CVE-2021-47801: Vianeos OctoPUS 5 - 'login_user' SQLi

• Severity: high (CVSS 8.2 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-01-16 · updated 2026-06-17
• Weakness: CWE-89

Description

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.

Affected products

• Vianeos OctoPUS: > V5

References

• http://www.vianeos.com/en/home-vianeos/
• https://vianeos.com/en/products/octopus
• https://www.exploit-db.com/exploits/50078
• https://www.vulncheck.com/advisories/vianeos-octopus-loginuser-sqli

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