CVE-2026-39601 LOW

CVE-2026-39601: WordPress Booking Calendar plugin <= 11.8.4 - Race Condition vulnerability

Vendor Wpdevelop

Product Booking Calendar

Weakness CWE-362

Published October 2, 2026

Last update October 3, 2026

View on NVD All CVEs

CVSS base score

3.7/10

Attack vector Network

Attack complexity High

Privileges required None

User interaction None

Confidentiality None

Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N

What the vulnerability does

01Description

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') vulnerability in WPdevelop Booking Calendar booking allows Leveraging Race Conditions.This issue affects Booking Calendar: from n/a through 11.8.4.

Key dates

02Disclosure timeline

October 2, 2026 CVE published

October 3, 2026 Record updated

External resources

03References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2026-39601 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/362.html AskarLabs — CWE-362 write-up Race Condition

Related vulnerabilities

04Related CVE

CVE-2022-0279 AnyComment < 0.2.18 - Comment Rating Increase/Decrease via Race Condition CVE-2025-47545 WordPress Poll Maker plugin <= 5.7.7 - Race Condition Vulnerability CVE-2025-13231 Fancy Product Designer | WooCommerce WordPress <= 6.4.8 - Unauthenticated Server-Side Request Forgery via Race Condition CVE-2025-59577 WordPress MasterStudy LMS Plugin <= 3.6.20 - Race Condition Vulnerability CVE-2021-24377 Autoptimize < 2.7.8 - Race Condition leading to RCE