Vulnerability Details CVE-2021-39356
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.006
EPSS Ranking 67.7%
CVSS Severity
CVSS v3 Score 5.5
CVSS v2 Score 3.5
References
- https://github.com/BigTiger2020/word-press/blob/main/Content%20Staging.md
- https://plugins.trac.wordpress.org/browser/content-staging/trunk/templates/settings.php
- https://wordfence.com/vulnerability-advisories/#CVE-2021-39356
- https://github.com/BigTiger2020/word-press/blob/main/Content%20Staging.md
- https://plugins.trac.wordpress.org/browser/content-staging/trunk/templates/settings.php
- https://wordfence.com/vulnerability-advisories/#CVE-2021-39356
Products affected by CVE-2021-39356
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cpe:2.3:a:content_staging_project:content_staging:-
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cpe:2.3:a:content_staging_project:content_staging:1.1
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cpe:2.3:a:content_staging_project:content_staging:1.1.1
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cpe:2.3:a:content_staging_project:content_staging:1.2.0
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cpe:2.3:a:content_staging_project:content_staging:1.2.1
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cpe:2.3:a:content_staging_project:content_staging:1.2.2
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cpe:2.3:a:content_staging_project:content_staging:2.0.0
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cpe:2.3:a:content_staging_project:content_staging:2.0.1