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Status published
Medium
CVE-2021-34666
Add Sidebar <= 2.0.0 Reflected Cross-Site Scripting
Vulnerability Description
The Add Sidebar WordPress plugin is vulnerable to Reflected Cross-Site Scripting via the add parameter in the ~/wp_sidebarMenu.php file which allows attackers to inject arbitrary web scripts, in versions up to and including 2.0.0.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- p7e4
Affected Vendor
Add Sidebar
View all reports →Affected Software
Add Sidebar
Vulnerable Versions:
2.0.0
Timeline
Official Publish:
August 16th, 2021
Last Modified:
May 5th, 2025
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