The Real WYSIWYG WordPress plugin is vulnerable to Reflected Cross-Site Scripting due to the use of PHP_SELF in the ~/real-wysiwyg.php file which allows attackers to inject arbitrary web scripts, in versions up to and including 0.0.2.
https://www.wordfence.com/vulnerability-advisories/#CVE-2021-39310
https://plugins.trac.wordpress.org/browser/real-wysiwyg/tags/0.0.2/real-wysiwyg.php#L213
Source: Mitre, NVD
Published: 2021-12-14
Updated: 2026-06-17
Base Score: 4.3
Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N
Severity: Medium
Base Score: 6.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS: 0.00199