Appointment Booking Calendar Plugin up to 1.6.2 on WordPress access control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.1$0-$5k0.00+

Summaryinfo

A vulnerability classified as problematic was found in Appointment Booking Calendar Plugin and Scheduling Plugin up to 1.6.2. This affects an unknown function. Such manipulation leads to access control. This vulnerability is listed as CVE-2026-76586. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability was found in Appointment Booking Calendar Plugin and Scheduling Plugin up to 1.6.2. It has been rated as problematic. Affected by this issue is an unknown function. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. Impacted is integrity. CVE summarizes:

The Appointment Booking Calendar Plugin and Scheduling Plugin WordPress plugin before 1.6.3 does not verify the amount actually paid against the server-side price staged for a booking when confirming an online payment, allowing unauthenticated users to have a paid appointment approved for a fraction of its price.

The advisory is available at wpscan.com. This vulnerability is handled as CVE-2026-76586 since 08/19/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1068 by the MITRE ATT&CK project.

Upgrading to version 1.6.3 eliminates this vulnerability.

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Productinfo

Type

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-284 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Appointment Booking Calendar Plugin/Scheduling Plugin 1.6.3

Timelineinfo

08/19/2026 CVE reserved
08/29/2026 +10 days Advisory disclosed
08/29/2026 +0 days VulDB entry created
08/29/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: wpscan.com
Status: Confirmed

CVE: CVE-2026-76586 (🔒)
GCVE (CVE): GCVE-0-2026-76586
GCVE (VulDB): GCVE-100-396998

Entryinfo

Created: 08/29/2026 08:22
Changes: 08/29/2026 08:22 (54)
Complete: 🔍
Cache ID: 216::103

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