CVE-2023-5071: Sitekit <= 1.4 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'sitekit_iframe' shortcode

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: none known
Published: 2023-10-20 · updated 2026-06-17
Weakness: CWE-79

Description

The Sitekit plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'sitekit_iframe' shortcode in versions up to, and including, 1.4 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.

Affected products

webvitaly Sitekit: through 1.4

References

https://plugins.trac.wordpress.org/browser/sitekit/trunk/inc/sitekit-shortcode-iframe.php#L3
https://plugins.trac.wordpress.org/changeset/2970788/sitekit
https://www.wordfence.com/threat-intel/vulnerabilities/id/011c8a06-298e-4a53-9ef8-552585426d79?source=cve
https://plugins.trac.wordpress.org/browser/sitekit/trunk/inc/sitekit-shortcode-iframe.php#L3
https://plugins.trac.wordpress.org/changeset/2970788/sitekit
https://www.wordfence.com/threat-intel/vulnerabilities/id/011c8a06-298e-4a53-9ef8-552585426d79?source=cve

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