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LatePoint WordPress Plugin CVE-2026-104766

| EUVDEUVD-2026-96090 HIGH
Improper Privilege Management (CWE-269)
2026-10-10 Wordfence GHSA-h977-fppf-xgg7
8.8
CVSS 3.1 · Vendor: Wordfence
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Authenticate as LatePoint agent with settings__edit
  2. Delivery
    Submit crafted settings update (no allowlist)
  3. Exploit
    Set default_wp_role_for_customer to administrator
  4. Execution
    Trigger new customer self-registration
  5. Persist
    New account provisioned as WP administrator
  6. Impact
    Full site takeover

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A06:2025 - Insecure Design
ASVS 5.0
V8 - Authorization Least privilege enforcement
MITRE ATT&CK

1 technique across 1 tactic: Privilege Escalation

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Exploitation Conditions

Exploitation requires an authenticated attacker holding a LatePoint role (agent or custom role) that a WordPress administrator has explicitly granted the settings__edit capability - this is a non-default delegation, not available to ordinary customers or unauthenticated users. A second prerequisite is that a new LatePoint customer account is self-registered AFTER the malicious default_wp_role_for_customer value is persisted; the privilege escalation only materializes on that subsequent registration (which the attacker can self-trigger if public customer registration is enabled). Limiting factors: the required capability grant is operator-controlled and non-default, and the server performs no role allowlist validation (the restriction exists only in the UI dropdown), so environments that never delegate settings__edit to lower-trust roles are not exposed.

Impact

This is a genuine high-impact privilege-escalation flaw (CWE-269) but with meaningful real-world gating, so it sits below its 8.8 headline score in practical priority. The input CVSS vector (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) models full confidentiality/integrity/availability loss via WordPress administrator takeover, which is accurate for the outcome, but the AC:L rating understates the compound preconditions the description spells out: a WordPress administrator must first have granted the non-default settings__edit capability to a LatePoint agent or custom role, AND a new LatePoint customer must self-register after the malicious change - I assess this as AC:H. Exploitation status is 'no public exploit identified at time of analysis': the record carries no KEV listing, no POC flag, and no EPSS score, so there is no evidence of active exploitation or published exploit code. PR:L in the vector confirms an authenticated attacker is required. No EPSS or KEV data is present to corroborate exploitation likelihood - treat likelihood as unquantified rather than low. Net: credible and serious where the prerequisite capability grant exists, but not a drop-everything internet-wide emergency given the privileged-insider precondition and absence of any exploitation signal.

Exploit ScenarioDerived

An organization has delegated a LatePoint agent or custom role with the settings__edit capability to a semi-trusted staff member. That authenticated agent calls the settings update handler and overwrites default_wp_role_for_customer with administrator; the next person to self-register as a LatePoint customer (which the attacker can trigger themselves) is silently provisioned as a full WordPress administrator, handing the attacker complete site control. No public exploit code is identified at the time of analysis.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 0.3% exploitation probability (EPSS)

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AnalysisAIv1 – Oct 10, 2026

Privilege escalation in the LatePoint appointment booking plugin for WordPress (all versions up to and including 5.7.3) lets an authenticated LatePoint user who holds the settings__edit capability overwrite the default_wp_role_for_customer setting with 'administrator', so that any LatePoint customer account self-registered afterwards is created with full WordPress administrator rights. The flaw is entirely server-side - the role restriction exists only in the UI dropdown and is never validated when the setting is persisted - but it is gated by two real prerequisites: a WordPress administrator must first delegate settings__edit to an agent or custom role, and a new customer registration must occur after the malicious value is saved for the escalation to materialize. No public exploit code or confirmed active exploitation was identified at time of analysis, and the assessed vector (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H) treats this as a genuine high-impact issue that nonetheless sits below its 8.8 headline score in practical priority.

RemediationAI

Upstream fix available (PR/commit); released patched version not independently confirmed - the LatePoint Trac changeset referenced in the CVE record (https://plugins.trac.wordpress.org/changeset?reponame=&old=3728691%40latepoint&new=3728691%40latepoint) is the vendor's committed correction, so upgrade LatePoint to the newest release published after 5.7.3 and verify against that changeset rather than assuming a specific version number. Until the upgrade is applied, the highest-value control is to audit and revoke the LatePoint settings__edit capability from every agent and custom role that does not strictly require it - this removes the attacker's foothold entirely, at the cost of those roles losing the ability to manage plugin settings. In parallel, inspect the current value of default_wp_role_for_customer and reset it to a non-privileged role such as customer or subscriber, and review all WordPress administrator accounts for any that were created through LatePoint customer self-registration after an unexplained settings change (any such account should be treated as compromised and removed). If public customer self-registration is enabled and capability delegation cannot be tightened immediately, temporarily disabling self-registration breaks the second exploitation prerequisite, though it will interrupt legitimate sign-ups. Because exploitation is authenticated and non-default - see the Wordfence advisory linked above for the vendor's own guidance - environments that never delegate settings__edit to lower-trust roles are not exposed and do not require emergency action.

Affected VersionsENISA

Appointment Booking Plugin – LatePoint | Calendar & Scheduling for WordPress 0 ≤5.7.3

Affected Packages

euvd appointment_booking_plugin_latepoint_calendar_scheduling_for_wordpress no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This is an improper privilege management weakness (CWE-269) in LatePoint's settings pipeline. The handler OsSettingsController::update() iterates over attacker-supplied 'settings' parameters without an allowlist of permitted setting names or values, and OsSettingsHelper::prepare_value() performs no role allowlist validation before persisting the value of default_wp_role_for_customer - the UI dropdown is the only place the allowed roles are constrained, and that constraint is never re-enforced server-side. The stored value is later consumed on the customer-registration path (see lib/helpers/customer_helper.php line 297 and lib/helpers/settings_helper.php line 953 in the 5.7.3 tag), where the saved default role is applied to newly created WordPress users, converting a low-privilege LatePoint agent or custom role into a full WordPress administrator on the next self-registration. LatePoint's capability model uses permission strings such as settings__edit rather than standard WordPress capabilities, so exposure depends entirely on how an administrator has delegated those plugin capabilities; the authoritative CPE entry (cpe:2.3:a:latepoint:appointment_booking_plugin_-_latepoint_|_calendar_&_scheduling_for_wordpress) covers the plugin across the affected version range with no platform or configuration discrimination.

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Severity by source

Vendor (Wordfence) PRIMARY 8.8 HIGH
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
vuln.today AI 7.5 HIGH

PR:L for the required delegated LatePoint role; AC:H because exploitation depends on a non-default capability grant plus a subsequent customer registration; full admin takeover gives C:H/I:H/A:H.

3.1 AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
4.0 AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (Wordfence).

CVSS VectorVendor: Wordfence

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

DescriptionCVE.org

The Appointment Booking Plugin - LatePoint | Calendar & Scheduling for WordPress plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 5.7.3. This is due to the OsSettingsController::update() handler iterating over attacker-supplied settings parameters without an allowlist of permitted setting names or values, and OsSettingsHelper::prepare_value() performing no role allowlist validation before persisting the default_wp_role_for_customer setting - a restriction that exists only in the UI dropdown and is never enforced server-side. This makes it possible for authenticated attackers holding a LatePoint role with the settings__edit capability (such as an agent or custom role) to overwrite the default WordPress role for new customers with administrator, causing any subsequently self-registered LatePoint customer account to be created with full WordPress administrator privileges. Exploitation requires that a WordPress administrator has granted the settings__edit capability to a LatePoint agent or custom role, and that a new customer account is registered through LatePoint after the malicious setting change is persisted.

Executive ViewAI

Why It Matters

A privilege escalation flaw in the LatePoint appointment booking plugin for WordPress (versions up to and including 5.7.3) allows a delegated user with settings-editing rights to silently redirect new customer sign-ups into full WordPress administrator accounts, giving that user effective control of the entire site and any data it hosts. Leadership should care because a single misconfigured delegation of booking-plugin permissions can convert an ordinary scheduling workflow into a complete site takeover, exposing customer records, integrated payment or CRM data, and the organization's public web presence. The vulnerability is not publicly exploited today, but the required preconditions may already exist in environments where administrators have shared settings access with agents or custom roles.

Business Impact: High
Compensating Controls

No vendor-released patch identified at time of analysis. Interim mitigations: revoke the settings__edit capability from all agents and custom roles so only WordPress administrators can modify LatePoint settings; verify and lock the default_wp_role_for_customer value to a non-privileged role; disable open customer self-registration until remediation; audit and remove any administrator accounts created after recent customer registrations; and monitor for new administrator creation and settings changes.

Threat Intelligence Overview

EPSS Score
0.3%
Top 79% exploitable
Prevalence
Medium
popular commercial WordPress appointment-booking plugin, moderate install base
Social Media
1
Sightings
Data Quality
5 sources
Confidence: Medium

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 0.3%
Patch available No
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision
Scheduled
Exploitation
None
System Exposure· derived
Open
Automatable
No
Human Impact
High
Technical Impact
Total

Priority Score

44
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +44
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Privilege escalation occurs when an attacker leverages flaws in access control mechanisms to gain permissions beyond what they were originally granted.

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