What’s Vulnerable › Vulnerabilities

CVE-2023-5073: iframe forms <= 1.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via iframe Shortcode

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-10-31 · updated 2026-06-17
• Weakness: CWE-79

Description

The iframe forms plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'iframe' shortcode in versions up to, and including, 1.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Affected products

• jrbecart iframe forms: 1.0

References

• https://plugins.trac.wordpress.org/browser/iframe-forms/trunk/iframe-forms.php#L29
• https://www.wordfence.com/threat-intel/vulnerabilities/id/818de7f7-913a-4ade-927e-bba281b4709a?source=cve
• https://plugins.trac.wordpress.org/browser/iframe-forms/trunk/iframe-forms.php#L29
• https://www.wordfence.com/threat-intel/vulnerabilities/id/818de7f7-913a-4ade-927e-bba281b4709a?source=cve

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