CVE-2026-6742mediumCWE-79

CVE-2026-6742: medium-severity vulnerability in mdempfle Advanced iFrame

Advanced iFrame <= 2026.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via Gutenberg Block 'additional' Attribute

Published

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13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 6.4epss 0.3%
The Advanced iFrame plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'additional' parameter in all versions up to, and including, 2026.1 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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Affected products
mdempfle · Advanced iFrame
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In the same product, most dangerous first.

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