CVE-2026-103590 QloApps through 1.7.0 Reflected XSS via Length of Stay Fields
Attackers can execute arbitrary JavaScript in admin sessions via reflected XSS in QloApps room type editor fields.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-103590?
CVE-2026-103590 is a medium-severity cross-site scripting vulnerability in Webkul QloApps, published on 30 Sep 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
QloApps through 1.7.0 contains a reflected cross-site scripting vulnerability in the back-office room type editor's length of stay fields. Attackers can induce authenticated administrators to submit crafted POST requests with malicious payloads in restriction_min_los and restriction_max_los parameters, executing arbitrary JavaScript in the victim's administrative session.
Weakness: CWE-79
Which versions are affected by CVE-2026-103590?
How do I fix CVE-2026-103590?
No fix has been published for CVE-2026-103590 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-103590 being exploited?
There is no known exploitation of CVE-2026-103590 in the wild and no public exploit code.
Sources
Also known as GHSA-5wxf-fcx2-rcwq.