What is CVE-2026-4966?

CVE-2026-4966 is a medium-severity vulnerability in Itsourcecode Free Hotel Reservation System, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 6.3/10. Published 2026-03-27.

How severe is CVE-2026-4966?

Medium severity. CVSS v3 base score is 6.3 out of 10.

SQL Injection in Itsourcecode Free Hotel Reservation System

CVE-2026-4966

A flaw has been found in itsourcecode Free Hotel Reservation System 1.0. Impacted is an unknown function of the file /admin/mod_room/index.php?view=edit. Executing a manipulation of the argument ID can lead to sql injection. The attack can be launched remotely. The exploit has been published and may be used.

Published 2026-03-27 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.

EPSS exploit prediction

EPSS: 0.003 (22.1th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 22nd percentile — 22.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.001

Affected products

Itsourcecode Free Hotel Reservation System — versions 1.0

Weakness classification (CWE)

References

vuldb.com/ (technical-description, vdb-entry)
vuldb.com/ (signature, permissions-required)
vuldb.com/ (third-party-advisory)
github.com/bybinyu/Vulnerability-Practice/issues/8 (issue-tracking, exploit)
itsourcecode.com/ (product)

Frequently asked questions

What is CVE-2026-4966?: CVE-2026-4966 is a medium-severity vulnerability in Itsourcecode Free Hotel Reservation System, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 6.3/10. Published 2026-03-27.
How severe is CVE-2026-4966?: Medium severity. CVSS v3 base score is 6.3 out of 10.