CVE-2026-124474

MEDIUM 6.1

MRBS before 1.12.3 Reflected XSS via error parameter of view_entry.php

CVSS Score

6.1

EPSS Score

0.0%

EPSS Percentile

0th

MRBS (Meeting Room Booking System) before 1.12.3 contains a reflected cross-site scripting vulnerability that allows unauthenticated attackers to inject script via the error parameter of view_entry.php. Attackers can send crafted links to logged-in users to read CSRF tokens, modify or delete bookings, or perform administrative actions.

CWE	CWE-79
Vendor	meeting-room-booking-system
Product	mrbs-code
Published	Nov 8, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Affected Versions

meeting-room-booking-system / mrbs-code

0 < 1.12.3

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/meeting-room-booking-system/mrbs-code/security/advisories/GHSA-5wqw-q7gh-j65v github.com: https://github.com/meeting-room-booking-system/mrbs-code/commit/83b8253853359964f850208c28036b2bfa202466 github.com: https://github.com/meeting-room-booking-system/mrbs-code/releases/tag/v1.12.3 github.com: https://github.com/meeting-room-booking-system/mrbs-code/blob/38d51e05f4a0ab39820f3830ca5dcae5f34d8546/web/view_entry.php#L966-L969 vulncheck.com: https://www.vulncheck.com/advisories/mrbs-before-1.12.3-reflected-xss-via-error-parameter-of-view-entry-php

Credits

leediay153 from Viettel Post campbell-m