CVE-2021-39356

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.

Affected Software

Weaknesses

• CWE-79: CWE-79 Cross-site Scripting (XSS)

ADP Enrichment

CVE Program Container

Additional References

• 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

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: no
  • Technical Impact: partial

References

• 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

• ←Previous
• Next→