Stored Cross-Site Scripting Vulnerability in Advanced iFrame Plugin for WordPress
CVE-2026-6742

6.4MEDIUM

Key Information:

Vendor

WordPress
Status
Advanced Iframe
Vendor
CVE Published:
8 July 2026

What is CVE-2026-6742?

The Advanced iFrame plugin for WordPress is susceptible to Stored Cross-Site Scripting due to inadequate input sanitization and output escaping in the 'additional' parameter. This vulnerability allows authenticated users with contributor-level access or higher to inject malicious web scripts into pages. These scripts will execute when other users access the affected pages, potentially compromising user data and site integrity.

Affected Version(s)

Advanced iFrame 0 <= 2026.1

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://plugins.trac.wordpress.org/changeset/3558422/adva...

CVSS V3.1

Score:
6.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Osvaldo Noe Gonzalez Del Rio (Os)
.