Is CVE-2026-54002 actively exploited?

No active exploitation of CVE-2026-54002 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-54002 be exploited remotely?

Yes. CVE-2026-54002 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-54002?

CVE-2026-54002 has a CVSS score of 8.5 (HIGH).

HOME VULNERABILITIESCVE-2026-54002

HIGH

CVE-2026-54002

CWE-79Published: July 9, 2026· Updated: Jul 10, 2026

8.5

CVSS v3.1

EPSS:0.41%probability of exploitation in 30 daysPercentile:32.9th

Official 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.

NVD Source

Technical Analysis

CVE-2026-54002 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

From a weakness classification perspective (CWE-79): Cross-site scripting (XSS) vulnerabilities allow attackers to inject malicious scripts into web pages viewed by other users.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges Req.Low

User InteractionP

ScopeX

Impact

Confidentiality

Integrity

Availability

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X