CVE-2026-4356Public exploitNetwork attack vector

Client-side script execution via unencoded result input

Published Mar 18, 2026 · Updated Mar 18, 2026

Cross-site scripting in itsourcecode University Management System 1.0 allows remote authenticated users to execute script in a victim browser. The add_result.php endpoint places the vr parameter directly into generated page output without appropriate encoding or filtering. The CNA metrics require high privileges and passive victim interaction, limiting the reported consequence to client-side content modification.

CVSS severity2.4
Low
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in itsourcecode University Management System 1.0 allows remote authenticated users to execute script in a victim browser. The add_result.php endpoint places the vr parameter directly into generated page output without appropriate encoding or filtering. The CNA metrics require high privileges and passive victim interaction, limiting the reported consequence to client-side content modification.

The record

CVE
CVE-2026-4356
Published
Mar 18, 2026
Updated
Mar 18, 2026
Vendor
itsourcecode.com
Product
University Management System
Classifications
CWE-79, CWE-94, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 18, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 18, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

itsourcecode.com · University Management Systemversion=1.0

Published CVSS scores

1.9VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
2.4VulDBCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:L/A:N
3.3VulDBAV:N/AC:L/Au:M/C:N/I:P/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-94Improper Control of Generation of Code ('Code Injection')
T1059.007Command and Scripting Interpreter: JavaScript

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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