TI-2021-03220 Aliases CVE-2021-4363 GHSA-f37x-r3cc-2x57

WP Quick FrontEnd Editor <= 5.5 - Reflected Cross-Site Scripting

LOW 29CWE-79Published 2023-06-07 · Updated 2026-04-08

Key facts

Attack vector: Network
Privileges required: None
User interaction: Required
Attack complexity: Low
Impact type: Cross-site scripting
Confidentiality · integrity · availability: Low · Low · None
Fix status: No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

The WP Quick FrontEnd Editor plugin for WordPress is vulnerable to Reflected Cross-Site Scripting in versions up to, and including, 5.5 due to insufficient input sanitization and output escaping on the 'save_content_front' function that uses print_r on the user-supplied $_REQUEST values . This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00744 55th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
labibahmed42	WP Quick FrontEnd Editor – WordPress Plugin	up to 5.5	—	No fix listed	CNA

WP Quick FrontEnd Editor – WordPress Plugin Vendorlabibahmed42 Affected up to 5.5 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:webdevocean:wp_quick_frontend_editor::::::wordpress::*	up to 5.5	Vulnerable	labibahmed42

cpe:2.3:a:webdevocean:wp_quick_frontend_editor:*:*:*:*:*:wordpress:*:* Versions up to 5.5 Vulnerable ·labibahmed42

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2021-4363
2026-10-03 Alias added: GHSA-f37x-r3cc-2x57

References

TI-2021-03240 WP Quick FrontEnd Editor <= 5.5 - Authenticated (Subscriber+) Content Injection CVSS 3.1HIGH 8.1
TI-2021-03235 WP Quick FrontEnd Editor <= 5.5 - Authenticated (Subscriber+) Stored Cross-Site Scripting CVSS 3.1MEDIUM 6.4

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences