What is CVE-2026-13556?

CVE-2026-13556 is a medium-severity vulnerability in Itsourcecode Online Hotel Management System, classified under Cross-site Scripting. CVSS score: 4.3/10. Published 2026-06-29.

How severe is CVE-2026-13556?

Medium severity. CVSS v3 base score is 4.3 out of 10.

RCE in Itsourcecode Online Hotel Management System

CVE-2026-13556

A vulnerability was determined in itsourcecode Online Hotel Management System 1.0. This affects an unknown part of the file /admin/mod_users/controller.php?action=edit of the component POST Request Handler. This manipulation of the argument Name causes cross site scripting. The attack may be initiated remotely. The exploit has been publicly disclosed and may be utilized.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.003 (19.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N.

Affected products

Itsourcecode Online Hotel Management System — versions 1.0

Weakness classification (CWE)

References

cna@vuldb.com (issue-tracking, exploit)
cna@vuldb.com (product)
cna@vuldb.com (third-party-advisory)
cna@vuldb.com (third-party-advisory)
cna@vuldb.com (technical-description, vdb-entry)
cna@vuldb.com (signature, permissions-required)

Frequently asked questions

What is CVE-2026-13556?: CVE-2026-13556 is a medium-severity vulnerability in Itsourcecode Online Hotel Management System, classified under Cross-site Scripting. CVSS score: 4.3/10. Published 2026-06-29.
How severe is CVE-2026-13556?: Medium severity. CVSS v3 base score is 4.3 out of 10.