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.
Published 2021-10-21 20:15:08
Updated 2021-10-27 22:25:24
Source Wordfence
View at NVD,   CVE.org
Vulnerability category: Cross site scripting (XSS)

Exploit prediction scoring system (EPSS) score for CVE-2021-39356

0.06%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 24 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-39356

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
3.5
LOW AV:N/AC:M/Au:S/C:N/I:P/A:N
6.8
2.9
NIST
4.8
MEDIUM CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
1.7
2.7
NIST
5.5
MEDIUM CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N
2.3
2.7
Wordfence

CWE ids for CVE-2021-39356

References for CVE-2021-39356

Products affected by CVE-2021-39356

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