Back to Database
Status published
Medium
CVE-2021-24124
WP Shieldon 1.6.3 - Unauthenticated Cross-Site Scripting (XSS)
Vulnerability Description
Unvalidated input and lack of output encoding in the WP Shieldon WordPress plugin, version 1.6.3 and below, leads to Unauthenticated Reflected Cross-Site Scripting (XSS) when the CAPTCHA page is shown could lead to privileged escalation.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
THREAT MONITOR
Am I Vulnerable?
Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2021-24124
Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- Johto Robbie
More from Unknown
View All →CVE-2025-9978
Jeg Elementor Kit < 2.7.0 - Author+ Stored XSS
Unknown
0
CVE-2025-9959
Sandbox escape in smolagents Local Python execution environment via dunder attributes
High
7.6
CVE-2025-9900
Libtiff: libtiff write-what-where
High
8.8
CVE-2025-9784
Undertow: undertow madeyoureset http/2 ddos vulnerability
High
7.5
CVE-2025-9710
Responsive Lightbox & Gallery < 2.5.3 - Unauthenticated Stored-XSS via Comments
Unknown
0
Affected Vendor
Unknown
View all reports →Affected Software
WP Shieldon
Vulnerable Versions:
1.6.3
Timeline
Official Publish:
March 18th, 2021
Last Modified:
August 3rd, 2024
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N