Medium severity5.5NVD Advisory· Published Oct 15, 2021· Updated Jun 17, 2026
CVE-2021-39349
CVE-2021-39349
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
2- Range: <=3.3.1
- Author Bio Box/Author Bio Boxv5Range: 3.3.1
Patches
Vulnerability mechanics
References
3- plugins.trac.wordpress.org/changeset/2613798/author-bio-box/tags/3.3.2/includes/admin/class-author-bio-box-admin.phpnvdPatchThird Party Advisory
- github.com/BigTiger2020/word-press/blob/main/Author%20Bio%20Box.mdnvdExploitThird Party Advisory
- www.wordfence.com/vulnerability-advisories/nvdThird Party Advisory
News mentions
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