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CVE-2021-47801

26
FAUCET Score

CVE-2021-47801 is a time-based blind SQL injection vulnerability found in the 'login_user' parameter of Vianeos OctoPUS 5 during authentication. This high-severity vulnerability (CVSS 8.2) allows unauthenticated attackers to remotely extract sensitive information by crafting malicious POST requests that trigger database delays. While no public exploit code or active exploitation has been observed, and community discussion is minimal, its high FAUCET Risk Score indicates a significant potential impact.

Impacted Technologies

VendorProductVersion(s)CPE
VianeosVianeos OctoPUS
> V5CNA affected

CVSS Data

CVSS version used by this source: 4.0

8.8HIGH

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
VS Confidentiality
HIGH
VS Integrity
LOW
VS Availability
NONE
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
NOT_DEFINED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.35%
Probability of exploitation in next 30 days
EPSS Percentile
27.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0035 is in the 9th percentile among its peer group of 51,553 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

vianeos.com / en/products/octopus
exploit-db.com / exploits/50078
vulncheck.com / advisories/vianeos-octopus-loginuser-sqli
vianeos.com / en/home-vianeos