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.
Conclusion & alert: CVE-2023-24058 is rated Exploit Available (51.2/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.85%). Core evidence: 3 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
| EDB-ID | Source | Kind | Published | Link |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ | |
| — | nvd_ref | exploit_tag | Exploit-DB ↗ | |
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.50% | 0.85% | +0.35% |
| 2 | 2026-01-23 | 0.16% | 0.50% | +0.34% |
| 3 | 2025-11-21 | — | 0.16% | — |
Full EPSS history (13 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 4.3 | 3.1 | MEDIUM |
|
2.8 | 1.4 | [email protected] |
| 4.3 | 3.1 | MEDIUM |
|
2.8 | 1.4 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| twinkletoessoftware | booked | 2.5.5 | cpe:2.3:a:twinkletoessoftware:booked:2.5.5:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| 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 | Exploit Third Party Advisory |
| https://github.com/LibreBooking/app/tags?after=2.7.1 | Third Party Advisory |
| https://s1n1st3r.gitbook.io/theb10g/booked-scheduler-v2.5.5-vulnerability | Exploit Third Party Advisory |
| https://www.bookedscheduler.com/the-future-of-booked/ | Vendor Advisory |
| https://www.labarchives.com/labarchives-knowledge-base/2022-feature-releases-2/ | Release Notes Vendor Advisory |
| https://www.limswiki.org/index.php/Booked | Third Party Advisory |