What is the CVSS score of CVE-2023-4919?

CVE-2023-4919 has a CVSS 3.1 base score of 6.4 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N. EPSS exploitation probability: 0.1%.

Is there a public PoC exploit available for CVE-2023-4919?

Yes, a public proof-of-concept exploit is available for CVE-2023-4919. Prioritise patching immediately. EPSS: 0.1%.

Is there a patch available for CVE-2023-4919?

Yes, a patch is available for CVE-2023-4919. Update the affected software to the latest version immediately.

Iframe CVE-2023-4919

MEDIUM

Cross-site Scripting (XSS) (CWE-79)

2023-10-20 security@wordfence.com

XSS WordPress Iframe

6.4

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

6.4 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

Patch released

Apr 08, 2026 - 18:22 nvd

Patch available

PoC Detected

Apr 08, 2026 - 18:18 vuln.today

Public exploit code

CVE Published

Oct 20, 2023 - 07:15 nvd

MEDIUM 6.4

DescriptionCVE.org

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.

AnalysisAI

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. Rated medium severity (CVSS 6.4), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available.

Technical ContextAI

This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. 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. Affected products include: Iframe Project Iframe. Version information: version 4.6.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.