Description
Booked Scheduler 2.5.5 allows authenticated users to create and schedule events for any other user via a modified userId value to reservation_save.php. NOTE: 2.5.5 is a version from 2014; the latest version of Booked Scheduler is not affected. However, LabArchives Scheduler (Sep 6, 2022 Feature Release) is affected.
References (7)
Core 7
Core References
Exploit, Third Party Advisory
https://github.com/LibreBooking/app/blob/0a6cb1a9eb84835553c8caf93db2791f8655140f/Pages/Ajax/ReservationSavePage.php#L234-L237
Exploit, Third Party Advisory
https://github.com/LibreBooking/app/blob/0a6cb1a9eb84835553c8caf93db2791f8655140f/Web/ajax/reservation_save.php
Third Party Advisory
https://github.com/LibreBooking/app/tags?after=2.7.1
Exploit, Third Party Advisory
https://s1n1st3r.gitbook.io/theb10g/booked-scheduler-v2.5.5-vulnerability
Vendor Advisory
https://www.bookedscheduler.com/the-future-of-booked/
Release Notes, Vendor Advisory
https://www.labarchives.com/labarchives-knowledge-base/2022-feature-releases-2/
Third Party Advisory
https://www.limswiki.org/index.php/Booked
Scores
CVSS v3
4.3
EPSS
0.0085
EPSS Percentile
53.4%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-284
Status
published
Products (1)
twinkletoessoftware/booked
2.5.5
Published
Jan 22, 2023
Tracked Since
Feb 18, 2026