Is CVE-2026-44259 actively exploited?

No active exploitation of CVE-2026-44259 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-44259 be exploited remotely?

Yes. CVE-2026-44259 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-44259?

CVE-2026-44259 has a CVSS score of 4.6 (MEDIUM).

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MEDIUM

CVE-2026-44259

CWE-80Published: May 12, 2026· Updated: May 13, 2026

4.6

CVSS v3.1

EPSS:0.03%probability of exploitation in 30 daysPercentile:8.4th

Official Description

efw4.X is an Enterprise Framework for Web. Prior to 4.08.010, the previewServlet serves files with their detected MIME type based on file extension, without any content sanitization or security headers. Files with .html, .htm, or .svg extensions are served as text/html or image/svg+xml respectively, causing any embedded JavaScript to execute in the victim's browser within the application's origin. This vulnerability is fixed in 4.08.010.

NVD Source

Technical Analysis

CVE-2026-44259 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.