CVE-2026-89008
Tenable Plugin
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AI Threat Summary
CVE-2026-89008 is a moderate vulnerability with a CVSS score of 2.7 affecting the target software. Threat hunters should monitor for exploit attempts and apply vendor patches immediately.
Description
The Bookit — Booking & Appointment Calendar WordPress plugin before 2.6.0.5 does not perform an authorization check on one of its appointment-retrieval actions, allowing users with a low-privilege Bookit — Booking & Appointment Calendar WordPress plugin before 2.6.0.5-specific role to read other users' appointment records, including customer names, email addresses, phone numbers and private booking comments.
Attack Chain
Attacker scans for vulnerable versions using version banners or PoC scanners
Attacker triggers CVE-2026-89008 vulnerability with a crafted request or payload
Vulnerability exploited to perform unauthorized actions on the target system
Depending on vulnerability type, attacker achieves data access, service disruption, or code execution
MITRE ATT&CK Techniques
Indicators of Compromise
| Type | Value | Description | |
|---|---|---|---|
| user_agent | Mozilla/5.0 (compatible; exploit/1.0) |
Generic exploit scanner user agent pattern | |
| url | /api/vuln-endpoint?payload=<malicious> |
Exploit attempt against application endpoint — monitor access logs for anomalous params |
Remediation
Quick Facts
| CVE ID | CVE-2026-89008 |
| CVSS Score | 2.7 |
| Vector | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N |
| Published | 2026-09-18 |
| Exploited | No |
| CISA KEV | No |
| PoC | Not public |