CVE-2021-39349

Summary

The Author Bio Box WordPress plugin is vulnerable to Stored Cross-Site Scripting due to insufficient input validation and sanitization via several parameters found in the ~/includes/admin/class-author-bio-box-admin.php file which allowed attackers with administrative user access to inject arbitrary web scripts, in versions up to and including 3.3.1. 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://www.wordfence.com/vulnerability-advisories/#CVE-2021-39349
• https://github.com/BigTiger2020/word-press/blob/main/Author%20Bio%20Box.md
• https://plugins.trac.wordpress.org/changeset/2613798/author-bio-box/tags/3.3.2/includes/admin/class-author-bio-box-admin.php

CISA ADP Vulnrichment

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

References

• https://www.wordfence.com/vulnerability-advisories/#CVE-2021-39349
• https://github.com/BigTiger2020/word-press/blob/main/Author%20Bio%20Box.md
• https://plugins.trac.wordpress.org/changeset/2613798/author-bio-box/tags/3.3.2/includes/admin/class-author-bio-box-admin.php

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