4.8
CVSSv3

CVE-2021-39356

Published: 21/10/2021 Updated: 27/10/2021
CVSS v2 Base Score: 3.5 | Impact Score: 2.9 | Exploitability Score: 6.8
CVSS v3 Base Score: 4.8 | Impact Score: 2.7 | Exploitability Score: 1.7
VMScore: 312
Vector: AV:N/AC:M/Au:S/C:N/I:P/A:N

Vulnerability Summary

The Content Staging WordPress plugin is vulnerable to Stored Cross-Site Scripting due to insufficient input validation and escaping via several parameters that are echo'd out via the ~/templates/settings.php file which allowed attackers with administrative user access to inject arbitrary web scripts, in versions up to and including 2.0.1. This affects multi-site installations where unfiltered_html is disabled for administrators, and sites where unfiltered_html is disabled.

Vulnerability Trend

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content staging project content staging