CVE-2026-12657: The LatePoint – Calendar Booking Plugin for Appointments and Events plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 5.6
The LatePoint – Calendar Booking Plugin for Appointments and Events plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 5.6.2 via the 'service_id' parameter due to missing validation on a user controlled key. This makes it possible for unauthenticated attackers to create approved bookings against services explicitly restricted to admins and agents, consuming restricted appointment capacity and triggering unauthorized bookings for admin/agent-only services. The bypass works via both the params[booking][service_id] parameter in steps__load_step and the presets[selected_service] parameter in steps__start, both of which are publicly accessible without authentication.
Details
Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-12657
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-126570.38% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 30% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-12657 | coverage & exploitation status | NVD · CVE.org |
Recent advisories for LatePoint
A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.
- highCVE-2026-5356: The LatePoint – Calendar Booking Plugin for Appointments and Events plugin for WordPress is vul…nvd · 2026-07-08
- mediumCVE-2026-11398: The LatePoint – Calendar Booking Plugin for Appointments and Events plugin for WordPress is vu…nvd · 2026-07-03
- highCVE-2026-13228: The LatePoint – Calendar Booking Plugin for Appointments and Events plugin for WordPress is vu…nvd · 2026-07-01
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