CVE-2026-13553Public exploitNetwork attack vector

Unauthenticated code execution via unrestricted file upload

Published Jun 29, 2026 · Updated Jun 29, 2026

Unrestricted file upload in itsourcecode.com Online Hotel Management System 1.0 allows remote attackers to execute server-side code. The add action in /admin/mod_amenities/controller.php trusts multipart Content-Type metadata and stores an attacker-named file in the web-accessible amenities pictures directory without validating its contents or extension. No login or authorization is required; a crafted PHP upload can be requested from that directory as a web shell, enabling control of the application server and access to its data.

CVSS severity6.9
Medium
EPSS probability0.50%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Unrestricted file upload in itsourcecode.com Online Hotel Management System 1.0 allows remote attackers to execute server-side code. The add action in /admin/mod_amenities/controller.php trusts multipart Content-Type metadata and stores an attacker-named file in the web-accessible amenities pictures directory without validating its contents or extension. No login or authorization is required; a crafted PHP upload can be requested from that directory as a web shell, enabling control of the application server and access to its data.

The record

CVE
CVE-2026-13553
Published
Jun 29, 2026
Updated
Jun 29, 2026
Vendor
itsourcecode.com
Product
Online Hotel Management System
Classifications
CWE-284, CWE-434, T1190, T1505.003
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 29, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 29, 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 privilegesunauthenticated

What is affected?

itsourcecode.com · Online Hotel Management Systemversion=1.0

Published CVSS scores

7.5VulDBAV:N/AC:L/Au:N/C:P/I:P/A:P
7.3VulDBCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
5.5VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
6.9VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA: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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-284Improper Access Control
CWE-434Unrestricted Upload of File with Dangerous Type
T1190Exploit Public-Facing Application
T1505.003Server Software Component: Web Shell

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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