What’s Vulnerable › Vulnerabilities

CVE-2026-4353: CI HUB Connector <= 1.2.106 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'id' Shortcode Attribute

• Severity: medium (CVSS 6.4 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: 2026-04-22 · updated 2026-06-17
• Weakness: CWE-79

Description

The CI HUB Connector plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'id' attribute of the `cihub_metadata` shortcode in all versions up to, and including, 1.2.106 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

• cihubconnector CI HUB Connector: through 1.2.106

References

• https://plugins.trac.wordpress.org/browser/ci-hub-connector/tags/1.2.106/ci-hub-wordpress-connector.php#L645
• https://plugins.trac.wordpress.org/browser/ci-hub-connector/trunk/ci-hub-wordpress-connector.php#L645
• https://www.wordfence.com/threat-intel/vulnerabilities/id/f4b36468-319a-4de3-9112-bd4a3cf7d637?source=cve

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