CVE-2026-12657: LatePoint <= 5.6.2 - Unauthenticated Insecure Direct Object Reference to Arbitrary Creation via 'service_id' Parameter
Vulnerability summary
CVE-2026-12657 is a medium (CVSS 5.3) vulnerability in latepoint latepoint – calendar booking plugin for appointments and events. EPSS estimates a 0.67% chance of exploitation in the next 30 days, higher than 51.4% of scored vulnerabilities. Fixed in 5.6.3.
Timeline
- 02-07-2026PublishedVulnerability first disclosed.
- 02-07-2026Last modifiedVulnerability information updated.
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.
CVSS metrics
3 scores · 3 sources · 1 version- NVDNIST5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- wordfenceSource5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
EPSS trend
Probability
0.67%
Chance of exploitation in the next 30 days
Percentile
51%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.67% on 22-09-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Latepoint1 product
Wordpress1 product
- latepoint≤ 5.6.2 (fixed in 5.6.3)
2 vendors · 2 products