EUVD-2026-40943
GHSA-9xqc-qhp9-fr5q
Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Network-reachable and deterministic (AV:N/AC:L) with no user interaction, but requires an authenticated Agent account (PR:L); escalation to Administrator yields total C/I/A within the same site scope.
Primary rating from Vendor (Wordfence).
CVSS VectorVendor: Wordfence
Lifecycle Timeline
2DescriptionCVE.org
The LatePoint - Calendar Booking Plugin for Appointments and Events plugin for WordPress is vulnerable to Privilege Escalation to Administrator in versions up to, and including, 5.6.3 This is due to an Insecure Direct Object Reference (IDOR) in the create_or_update() function of OsOrdersController, which allows an authenticated Agent to supply an arbitrary order[customer_id] and overwrite any LatePoint customer's email field (including one linked to a WordPress Administrator's account) through the public-scope customer set_data() call, combined with a missing role verification in OsAuthHelper::authorize_customer() which logs in the linked WordPress user without checking its role. This makes it possible for authenticated attackers, with custom (Agent)-level access and above, to elevate their privileges to Administrator.
Articles & Coverage 1
AnalysisAI
Privilege escalation to Administrator in the LatePoint booking plugin for WordPress (versions up to and including 5.6.3) lets an authenticated Agent-level user hijack any WordPress account by abusing an Insecure Direct Object Reference in OsOrdersController::create_or_update(). By supplying an arbitrary order[customer_id], an attacker overwrites the email of any LatePoint customer - including one tied to a WordPress Administrator - and then logs in as that user because OsAuthHelper::authorize_customer() never checks the linked account's role. Reported by Wordfence and rated CVSS 8.8; no public exploit identified at time of analysis and it is not on CISA KEV, though the root-cause code paths are pinpointed in public plugin source.
Technical ContextAI
The affected component is LatePoint, a commercial WordPress appointment/booking plugin (CPE cpe:2.3:a:latepoint:latepoint_-_calendar_booking_plugin_for_appointments_and_events). The flaw maps to CWE-269 (Improper Privilege Management) and manifests as two chained defects in PHP. First, the create_or_update() method of OsOrdersController accepts a client-controlled order[customer_id] and passes it into the customer object's public-scope set_data() routine, allowing an Agent to write attacker-chosen data (specifically the email field) onto a customer record they do not own - a textbook IDOR. Second, OsAuthHelper::authorize_customer() authenticates the WordPress user linked to a LatePoint customer by account association without verifying that user's WordPress role, so re-associating an Administrator's email to the attacker's controlled record yields an Administrator session. The referenced source lines (orders_controller.php L112/L127/L137 and auth_helper.php L256 at tag 5.6.2) and the 5.6.3→5.6.4 changeset document exactly these code paths.
RemediationAI
Update LatePoint to version 5.6.4 or later, the first release beyond the affected 5.6.3 and the one containing the fix documented in the WordPress plugin trac changeset (https://plugins.trac.wordpress.org/changeset/3590914/latepoint/trunk/lib/controllers/orders_controller.php and the 5.6.3→5.6.4 diff at https://plugins.trac.wordpress.org/changeset?old_path=%2Flatepoint/tags/5.6.3&new_path=%2Flatepoint/tags/5.6.4); consult the Wordfence advisory at https://www.wordfence.com/threat-intel/vulnerabilities/id/8f9db3b8-dd37-4d8b-b041-50b453858a39?source=cve for details. If you cannot patch immediately, treat every Agent-level account as effectively Administrator-capable: revoke or suspend non-essential Agent accounts, restrict Agent creation to fully trusted staff, and audit LatePoint customer records and WordPress user emails for unexpected changes to Administrator addresses. A Wordfence firewall rule or equivalent WAF blocking manipulated order[customer_id] parameters to the orders controller can act as a temporary compensating control, at the cost of possibly interfering with legitimate order editing until tuned; since the fix is a small tagged release, upgrading to 5.6.4 is strongly preferred over relying on these stopgaps.
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Same weakness CWE-269 – Improper Privilege Management
View allSame technique Privilege Escalation
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External POC / Exploit Code
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