Booked Scheduler 2.5.5 allows authenticated users to create and schedule events for any…
Priority MEDIUM 53CWE-284Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-284.
Summary
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.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.01022 63rd percentileScored 2026-11-07
Public exploit Yes 3 exploit referencesTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:twinkletoessoftware:booked:2.5.5:*:*:*:*:*:*:* | 2.5.5 | Vulnerable | Twinkle Toes Software |
- cpe:2.3:a:twinkletoessoftware:booked:2.5.5:*:*:*:*:*:*:* Versions 2.5.5 Vulnerable ·Twinkle Toes Software
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-24058
- 2026-10-03 Alias added: GHSA-cfwr-wq2f-j365
References
Exploit 3
- https://s1n1st3r.gitbook.io/theb10g/booked-scheduler-v2.5.5-vulnerability
- https://github.com/LibreBooking/app/blob/0a6cb1a9eb84835553c8caf93db2791f8655140f/Web/ajax/reservation_save.php
- https://github.com/LibreBooking/app/blob/0a6cb1a9eb84835553c8caf93db2791f8655140f/Pages/Ajax/ReservationSavePage.php#L234-L237
More Twinkle Toes Software Booked vulnerabilities
- TI-2019-07000 phpscheduleit Booked Scheduler 2.7.5 allows arbitrary file upload via the Favicon field… CVSS 3.1HIGH 8.8
- TI-2022-12842 Open redirect in Twinkle Toes Software Booked CVSS 3.1MEDIUM 6.1
Sources
- CVE-2023-24058 · CVE Program
- CVE-2023-24058 · NVD
- FIRST EPSS
- GHSA-cfwr-wq2f-j365 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences