XSS in Webkul Qloapps
CVE-2026-103587
QloApps through 1.7.0 contains a reflected cross-site scripting vulnerability in the back-office Hotel Reservation System Book Now search, where date_to and id_room_type parameters are copied into template variables without validation. Attackers can craft a malicious link containing JavaScript payload in these parameters that executes in an authenticated administrator's session when the victim follows the link.
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/modules/hotelreservationsystem/controlle… (technical-description)
- github.com/Qloapps/QloApps/blob/v1.7.0/modules/hotelreservationsystem/views/tem… (technical-description)
- github.com/Qloapps/QloApps/commit/1d06fd302a935d68203dbdb341d89482621769d7 (patch)
- github.com/Qloapps/QloApps/pull/1884 (issue-tracking, patch)
- hackmd.io/@leediay/four-reflected-xss-qloapps (technical-description)
- hackmd.io/@leediay/reflected-xss-qloapps-via-booking-now (technical-description)
- www.vulncheck.com/advisories/qloapps-through-1.7.0-reflected-xss-via-book-now-s… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-103587?
- CVE-2026-103587 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-2026-103587?
- Medium severity. CVSS v3 base score is 5.4 out of 10.