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CVE-2020-21998

30
FAUCET Score

CVE-2020-21998 describes an open redirect vulnerability in HomeAutomation 3.3.2, where unverified input in the 'redirect' GET parameter of 'api.php' can be manipulated to redirect users to arbitrary websites. This medium-severity vulnerability (CVSS 6.1) requires user interaction and can lead to information disclosure or phishing, as an attacker could craft a malicious link appearing to originate from a trusted domain. While there is no evidence of active exploitation or Metasploit modules, Nuclei templates exist for detection, and the vulnerability has received minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
3.3.2CPE matchmatch criteria
cpe:2.3:a:homeautomation_project:homeautomation:3.3.2:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.1MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
2.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.32%
Probability of exploitation in next 30 days
EPSS Percentile
67.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Nuclei: CVE-2020-21998 · Sep 7, 2021
This CVE's current EPSS score of 0.0132 is in the 80th percentile among its peer group of 26,236 CVEs.

Social Chatter

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

cxsecurity.com / issue/WLB-2019120132
ExploitThird Party Advisory
zeroscience.mk / en/vulnerabilities/ZSL-2019-5559.php
ExploitThird Party Advisory