What’s Vulnerable › Vulnerabilities

CVE-2025-1439: Advanced iFrame <= 2024.5 - Authenticated (Contributor+) Stored Cross-Site Scripting via Host Header

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-03-26 · updated 2026-06-17
• Weakness: CWE-79

Description

The Advanced iFrame plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'advanced_iframe' shortcode in all versions up to, and including, 2024.5 due to insufficient input sanitization and output escaping on user supplied attributes through the 'src' attribute when the src supplied returns a header with an injected value . 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

• mdempfle Advanced iFrame: before 2025.0 — fixed in 2025.0

How to fix

Upgrade to a fixed version: mdempfle Advanced iFrame 2025.0. Check the vendor advisory for mitigations.

References

• https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3255604%40advanced-iframe&new=3255604%40advanced-iframe&sfp_email=&sfph_mail=
• https://www.wordfence.com/threat-intel/vulnerabilities/id/5ac1145b-5ab1-47a9-9117-4870c52a70fc?source=cve

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