Is CVE-2026-33653 actively exploited?

No active exploitation of CVE-2026-33653 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-33653 be exploited remotely?

Yes. CVE-2026-33653 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-33653?

CVE-2026-33653 has a CVSS score of 4.6 (MEDIUM).

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MEDIUM

CVE-2026-33653

CWE-79Published: March 26, 2026· Updated: Mar 30, 2026

4.6

CVSS v3.1

EPSS:0.03%probability of exploitation in 30 daysPercentile:8.0th

Official Description

Ulloady is a file uploader script with multi-file upload support. A Stored Cross-Site Scripting (XSS) vulnerability exists in versions prior to 3.1.2 due to improper sanitization of filenames during the file upload process. An attacker can upload a file with a malicious filename containing JavaScript code, which is later rendered in the application without proper escaping. When the filename is displayed in the file list or file details page, the malicious script executes in the browser of any user who views the page. Version 3.1.2 fixes the issue.

NVD Source

Technical Analysis

CVE-2026-33653 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.