XSS in Webkul Qloapps
CVE-2026-103590
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.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/Qloapps/QloApps (product)
- github.com/Qloapps/QloApps/blob/v1.7.0/admin/themes/default/template/controller… (technical-description)
- github.com/Qloapps/QloApps/commit/7ed467d911086b190180d7f297e3b15ba31e82d5 (patch)
- github.com/Qloapps/QloApps/pull/1899 (issue-tracking, patch)
- hackmd.io/@leediay/four-reflected-xss-qloapps (technical-description)
- www.vulncheck.com/advisories/qloapps-through-1.7.0-reflected-xss-via-length-of-… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-103590?
- CVE-2026-103590 is a medium-severity vulnerability in Webkul Qloapps, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-09-30.
- How severe is CVE-2026-103590?
- Medium severity. CVSS v3 base score is 5.4 out of 10.