CVE-2023-4919

MEDIUM 6.4

iframe <= 4.6 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'iframe' Shortcode

CVSS Score

6.4

EPSS Score

0.0%

EPSS Percentile

0th

The iframe plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the `iframe` shortcode in versions up to, and including, 4.6 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level permission and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This was partially patched in version 4.6 and fully patched in version 4.7.

CWE	CWE-79
Vendor	webvitaly
Product	iframe
Published	Oct 20, 2023
Last Updated	Apr 8, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

webvitaly / iframe

0 ≤ 4.6

References

NVD ↗ CVE.org ↗ EPSS Data ↗

wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/3706deed-55f2-4dfb-bfed-7a14872cd15a?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/iframe/tags/4.5/iframe.php#L28 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/iframe/tags/4.5/iframe.php#L40 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/changeset/2970787/iframe#file4

Credits

István Márton Alex Thomas