CVE-2024-3526Public exploitNetwork attack vector

Reflected XSS via unneutralized msg parameter

Published Apr 10, 2024 · Updated Feb 21, 2025

Reflected XSS in CampCodes Online Event Management System 1.0 allows remote authenticated users to run script via the msg parameter. index.php reflects the msg query value into its HTML response without neutralizing script syntax. Exploitation requires low-privileged access and a victim to open the crafted URL; script execution remains within the victim's browser context.

CVSS severity5.4
Medium
EPSS probability0.64%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in CampCodes Online Event Management System 1.0 allows remote authenticated users to run script via the msg parameter. index.php reflects the msg query value into its HTML response without neutralizing script syntax. Exploitation requires low-privileged access and a victim to open the crafted URL; script execution remains within the victim's browser context.

The record

CVE
CVE-2024-3526
Published
Apr 10, 2024
Updated
Feb 21, 2025
Vendor
itsourcecode
Product
Online Event Management System
Classifications
CWE-79, T1189
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 10, 2024CVE publishedPublication date reported by the CVE source.
  2. Feb 21, 2025Record 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 · Online Event Management Systemversion=1.0

Published CVSS scores

4.0VulDBAV:N/AC:L/Au:S/C:N/I:P/A:N
3.5VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 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')
T1189Drive-by Compromise

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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