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CVE-2021-4383

17
FAUCET Score

CVE-2021-4383 describes a page content injection vulnerability in the WP Quick FrontEnd Editor plugin for WordPress, affecting versions up to and including 5.5. This flaw, due to missing capability checks, allows low-authenticated users like subscribers to edit or create any page or post. Rated Medium (CVSS 4.3), the vulnerability has a low attack complexity and can lead to unauthorized content modification (impact on integrity). There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 5.5CPE matchmatch criteria
cpe:2.3:a:webdevocean:wp_quick_frontend_editor:*:*:*:*:*:wordpress:*:*

CVSS Data

CVSS version used by this source: 3.1

8.1HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.80%
Probability of exploitation in next 30 days
EPSS Percentile
52.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0080 is in the 64th percentile among its peer group of 21,958 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 0.0 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 / multiple-vulnerabilities-in-wordpress-wp-quick-frontend-editor-plugin-unpatched
Exploit
wordpress.org / plugins/wp-quick-front-end-editor
Product
wordfence.com / threat-intel/vulnerabilities/id/f5492bff-cfd9-41ed-a59b-4445d5e83e86
Third Party Advisory