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)
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.005 (38.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 38th percentile — 38.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Itsourcecode Online Hotel Management System — versions 1.0
Weakness classification (CWE)
References
- github.com/Hh-176/CVE/issues/7 (issue-tracking, exploit)
- itsourcecode.com/ (product)
- vuldb.com/cve/CVE-2026-13556 (third-party-advisory)
- vuldb.com/submit/843586 (third-party-advisory)
- vuldb.com/vuln/374564 (technical-description, vdb-entry)
- vuldb.com/vuln/374564/cti (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.