CVE-2026-103366 json
Appointment Booking Plugin <= 5.7.3 - Insecure Direct Object Reference to Unauthenticated Sensitive Information Disclosure via 'booking[id]' and 'cart[id]' Parameters
published 26d ago modified 25d ago also EUVD-2026-100901
- cvss
- 7.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 41%
- public exploits
- 0
- none known
Summary
The Appointment Booking Plugin – LatePoint | Calendar & Scheduling for WordPress plugin for WordPress is vulnerable to Insecure Direct Object Reference in versions up to, and including, 5.7.3 via the `booking[id]` and `cart[id]` parameters on the `steps__reload_booking_form_summary_panel` and `steps__start` public routes (reachable through wp_ajax_nopriv_latepoint_route_call). This is due to `OsStepsHelper::set_required_objects()` feeding raw request parameters into `set_booking_object()` and `set_cart_object()`, which call `OsModel::set_data()` and load an arbitrary booking or cart row by primary key with no ownership check — the ownership guard the vendor added for the earlier disclosure lives only inside `OsStepsHelper::load_step()` and does not cover the sibling routes or `cart[id]` at all. This makes it possible for unauthenticated attackers to enumerate sequential booking / cart identifiers and read other customers' appointment details (service name, agent, date/time, duration, price breakdown, status) and other shoppers' pending checkout contents directly from the JSON responses.
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Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 25d ago
Exploit prediction
0.48% chance of exploitation in the next 30 days, higher than 41% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
Affected products
- latepoint Appointment Booking Plugin – LatePoint | Calendar & Scheduling for WordPress
Classification
- Weakness
-
- CWE-639 Authorization Bypass Through User-Controlled Key
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/2f13d1ac-d1b4-4802-bee2-3622e84d7482?source=cve
- plugins.trac.wordpress.org /browser/latepoint/tags/5.7.3/lib/helpers/steps_helper.php#L1232
- plugins.trac.wordpress.org /browser/latepoint/tags/5.7.3/lib/helpers/steps_helper.php#L3228
- plugins.trac.wordpress.org /browser/latepoint/tags/5.7.3/lib/models/model.php#L580
- plugins.trac.wordpress.org /browser/latepoint/tags/5.7.3/lib/controllers/steps_controller.php#L145
- plugins.trac.wordpress.org /browser/latepoint/tags/5.7.3/lib/controllers/steps_controller.php#L290
- plugins.trac.wordpress.org /browser/latepoint/tags/5.7.3/lib/helpers/steps_helper.php#L234
- plugins.trac.wordpress.org /browser/latepoint/tags/5.7.3/latepoint.php#L1072
- plugins.trac.wordpress.org /changeset?reponame=&old=3728691%40latepoint&new=3728691%40latepoint
Sources
- CVE List CVE-2026-103366
- NVD CVE-2026-103366
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.