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-2021-4370

28
FAUCET Score

CVE-2021-4370 is a critical authorization bypass vulnerability affecting the uListing plugin for WordPress, specifically versions up to and including 1.6.6. This flaw allows unauthenticated attackers to perform various administrative actions due to a lack of proper authentication, security nonces, and data validation. With a CVSS score of 9.8 (CRITICAL), the vulnerability is easily exploitable over the network with no user interaction required, potentially leading to complete compromise of confidentiality, integrity, and availability. While the EPSS and FAUCET scores indicate a moderate to high risk, there is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.6.6CPE matchmatch criteria
cpe:2.3:a:stylemixthemes:ulisting:*:*:*:*:*:wordpress:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.40%
Probability of exploitation in next 30 days
EPSS Percentile
69.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0140 is in the 56th percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

blog.nintechnet.com / wordpress-ulisting-plugin-fixed-multiple-critical-vulnerabilities
Exploit
plugins.trac.wordpress.org / changeset
Patch
wordfence.com / threat-intel/vulnerabilities/id/c5ada976-03b8-4219-9ae3-9060fb7b9de5
Third Party Advisory