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CVE-2026-54002

Published Jul 9, 2026 CWE-79

Overview

CVE-2026-54002 is a known-severity vulnerability. It was published on July 9, 2026.

Technical Description

Kirby is an open-source content management system. Prior to 4.9.4 and 5.4.4, Kirby sites and plugins that use the writer or list fields or call Dom::sanitize(), Sane::sanitize(), Sane::Html::sanitize(), Sane::Svg::sanitize(), Sane::Xml::sanitize(), Sane::sanitizeFile(), or file sanitizeContents() with untrusted input allow malicious markup injected as children of an unknown HTML or XML tag to pass through Dom::sanitize() without being correctly sanitized, causing stored cross-site scripting. This issue is fixed in versions 4.9.4 and 5.4.4.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHub github.com/getkirby/kirby/commit/0f0437b5128c910103cbc78fc34d94b2a3faef4c GitHub github.com/getkirby/kirby/commit/7ad76cf9c7387462828e6ebfc8404e31b37829e9 GitHub github.com/getkirby/kirby/commit/9ec1873864441dbc06479ef7823da348ec7f2700 GitHub github.com/getkirby/kirby/commit/bb2562e16c754493a403b8df84c9883108871e4c GitHub github.com/getkirby/kirby/releases/tag/4.9.4 GitHub github.com/getkirby/kirby/releases/tag/5.4.4 GitHub github.com/getkirby/kirby/security/advisories/GHSA-wr9h-4r83-f4v6

Frequently Asked Questions

What is CVE-2026-54002?

CVE-2026-54002 is a known-severity vulnerability. It was published on July 9, 2026.

How severe is CVE-2026-54002?

CVSS score information is not yet available for this vulnerability. Check back as the CVE record is updated by NVD analysts.

How do I fix or remediate CVE-2026-54002?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-54002?

CyberStrike's AI-powered security agents can automatically detect CVE-2026-54002 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.

How CyberStrike Helps

Autonomous Discovery

AI agents map your attack surface to find vulnerabilities like this one.
Continuous Pentesting

Automated penetration testing that runs continuously, not just quarterly.
Code Review

AI-driven PR review catches vulnerable dependencies before they ship.
HackBrowser

Browser-based exploitation validates findings with real proof-of-concept.
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