Is CVE-2026-4356 actively exploited?

No active exploitation of CVE-2026-4356 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-4356 be exploited remotely?

Yes. CVE-2026-4356 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-4356?

CVE-2026-4356 has a CVSS score of 2.4 (LOW).

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LOW

CVE-2026-4356

CWE-79Published: March 18, 2026· Updated: Mar 18, 2026

2.4

CVSS v3.1

EPSS:0.03%probability of exploitation in 30 daysPercentile:8.2th

Official Description

A flaw has been found in itsourcecode University Management System 1.0. Affected is an unknown function of the file /add_result.php. Executing a manipulation of the argument vr can lead to cross site scripting. The attack may be launched remotely. The exploit has been published and may be used.

NVD Source

Technical Analysis

CVE-2026-4356 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires high 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.