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WordPress plugin

Booking Calendar – Event Calendar <= 1.0.2 — Missing Authorization

84c4e3cc-1f7c-4ed9-9072-32f3e84419c9Published · Updated

Action summary

Affected: ≤1.0.2No patch available

What to do until a fix ships
Watch plugin
Severity
High7.1
CVSS
7.1
CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L
What does this vector mean?
AV:N Attack vector
Network
AC:L Attack complexity
Low
PR:L Privileges required
Low
UI:N User interaction
None
S:U Scope
Unchanged
C:N Confidentiality
None
I:H Integrity
High
A:L Availability
Low
Weakness
CWE-862 Missing Authorization
Required access
Unknown
Exploit prediction (EPSS)
No score
CISA KEV
Not listed
On this page8

Am I affected?

HBook - Hotel booking system - WordPress Plugin hbook

  1. Affected≤ 1.0.2
  2. PatchedNo fix yet

No patched version available.

You are affected if you run ≤ 1.0.2. No fixed version has been released.

  • Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under HBook - Hotel booking system - WordPress Plugin.
  • No admin access? Run a passive check of your site. It reads public files only.

What to do

  1. No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement.
  2. Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
  3. Watch HBook - Hotel booking system - WordPress Plugin to get an email when the next vulnerability is published.

Advisory

Source description from Wordfence Intelligence.

The Booking Calendar plugin for WordPress is vulnerable to authorization bypass due to a missing capability check on several functions (including omnivo_calendar_ajax_events_settings_save and omnivo_calendar_ajax_omnivo_calendar_delete_shortcode) in versions up to, and including, 1.0.2. This makes it possible for authenticated attackers, with subscriber-level permissions and above, to invoke those functions leading to setting changes and shortcode deletion among other issues.

Exploits & references

Proof-of-concept & detection

No public proof-of-concept or detection template is known for this vulnerability.

Advisories & patches

More in HBook - Hotel booking system - WordPress Plugin

All 2
More vulnerabilities in HBook - Hotel booking system - WordPress Plugin
SeverityVulnerabilityCVEPublished
High7.2Unauthenticated Stored Cross-Site Scripting via Multiple Parameters
≤2.1.9Update to 2.1.10
CVE-2026-8143

Same weakness (Missing Authorization)

All Missing Authorization
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SeverityVulnerabilityCVEPublished
High7.2Unauthenticated Stored Cross-Site Scripting via Comment User-Agent Header
EZ SQL Reports Shortcode Widget and DB Backup≤5.25.25Update to 5.26.45
CVE-2026-120688
Critical9.8Unauthenticated Arbitrary File Upload via File Upload via Public Form Submission
Chatterbug Forms – Fast, Flexible WordPress Form Builder≤1.0.2Update to 1.1
CVE-2026-125055
Critical9.8Unauthenticated PHP Object Injection to Remote Code Execution via 'form' Parameter
ELEX WordPress HelpDesk & Customer Ticketing System≤3.3.9Update to 3.4.0
CVE-2026-119077
Medium5.3Unauthenticated Sensitive Information Exposure in 'search' Parameter
Customer Reviews for WooCommerce≤5.127.0Update to 5.128.0
CVE-2026-121518

Timeline

  1. CVE published

    Severity high, CVSS 7.1

  2. Record last updated

Sources & licenses

Vulnerability data
Wordfence Intelligence. [object Object] Licensed under the CC BY-SA 4.0.
CVSS / CWE
National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
VulnCrest content
Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.

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