CVE-2023-2964: Simple Iframe < 1.2.0 - Contributor+ Stored XSS

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2023-07-10 · updated 2026-06-17

Description

The Simple Iframe WordPress plugin before 1.2.0 does not properly validate one of its WordPress block attribute's content, which may allow users whose role is at least that of a contributor to conduct Stored Cross-Site Scripting attacks.

Affected products

Simple Iframe: before 1.2.0 — fixed in 1.2.0

How to fix

Upgrade to a fixed version: Simple Iframe 1.2.0. Check the vendor advisory for mitigations.

References

https://wpscan.com/vulnerability/97aac334-5323-41bb-90f0-d180bcc9162f
https://wpscan.com/vulnerability/97aac334-5323-41bb-90f0-d180bcc9162f

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