CVE-2026-103590: QloApps reflected XSS in back-office room type editor

CVE-2026-103590 · Severity: medium · CVSS 5.4 · Published 2026-09-30

QloApps is a hotel management and reservation system used to manage properties and bookings. A reflected cross-site scripting vulnerability in the administrative back-office allows attackers to trick hotel administrators into executing malicious scripts within their logged-in session, potentially compromising hotel operations, guest data, or administrative credentials.

Technologies: QloApps. Vendors: QloApps.

Quick answers

Is CVE-2026-103590 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-103590 being exploited in the wild.
How severe is CVE-2026-103590?
Medium severity, with a CVSS score of 5.4, published 30 September 2026.
Which products and versions are affected?
QloApps through 1.7.0.
Is there a fix for CVE-2026-103590?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-103590 attacked?
It is attacked over the network.
Am I affected by CVE-2026-103590?
Check whether you run QloApps at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The vulnerability is a reflected XSS in the back-office room type editor, specifically in the restriction_min_los and restriction_max_los parameters. An attacker crafts a malicious POST request and tricks an authenticated administrator into submitting it, causing arbitrary JavaScript to execute in the victim's browser within their administrative session. The vulnerability requires authentication and user interaction (admin must visit a crafted link or submit a form).

Affected products

  • QloApps QloApps through 1.7.0

Timeline

  • 2026-09-30: disclosed

References

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