Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2021-3647

22
FAUCET Score

CVE-2021-3647 describes a URL Redirection to Untrusted Site vulnerability affecting URI.js. This medium-severity flaw (CVSS 6.1) allows an attacker to redirect users to malicious sites, potentially leading to information disclosure or integrity issues, requiring user interaction to exploit. There is currently no evidence of active exploitation, nor are there publicly available exploit modules or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.19.7CPE matchmatch criteria
cpe:2.3:a:uri.js_project:uri.js:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.3MEDIUM

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.91%
Probability of exploitation in next 30 days
EPSS Percentile
56.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0091 is in the 68th percentile among its peer group of 26,234 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

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
npmpatch availablevia ghsa
Product: urijsFixed in: 1.19.7

Vendor Advisories (1)

npmGHSA-89gv-h8wf-cg8rmedium

URIjs Vulnerable to Hostname spoofing via backslashes in URL

Jul 19, 2021

References

github.com / medialize/URI.js/commit/ac43ca8f80c042f0256fb551ea5203863dec4481
PatchThird Party Advisory
huntr.dev / bounties/1625558772840-medialize/URI.js
ExploitIssue TrackingThird Party Advisory