CVE-2021-39338 — MyBB Cross-Poster <= 1.0 Authenticated Stored Cross-Site Scripting
The MyBB Cross-Poster WordPress plugin is vulnerable to Stored Cross-Site Scripting due to insufficient input validation and sanitization via several parameters found in the ~/c…
Published: 2021-10-15 · CVSS: 5.5 · CVSS 3.1
The MyBB Cross-Poster WordPress plugin is vulnerable to Stored Cross-Site Scripting due to insufficient input validation and sanitization via several parameters found in the ~/classes/MyBBXPSettings.php file which allowed attackers with administrative user access to inject arbitrary web scripts, in versions up to and including 1.0. This affects multi-site installations where unfiltered_html is disabled for administrators, and sites where unfiltered_html is disabled.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7