What’s Vulnerable › Vulnerabilities

CVE-2021-39310: Real WYSIWYG <= 0.0.2 Reflected Cross-Site Scripting

• Severity: medium (CVSS 4.3 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-12-14 · updated 2026-06-17
• Weakness: CWE-79

Description

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.

Affected products

• Real WYSIWYG: through 0.0.2

References

• https://plugins.trac.wordpress.org/browser/real-wysiwyg/tags/0.0.2/real-wysiwyg.php#L213
• 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
• https://www.wordfence.com/vulnerability-advisories/#CVE-2021-39310

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