CVE-2026-6810Network attack vector

Authenticated calendar takeover via unchecked ownership key

Published Apr 24, 2026 · Updated Apr 24, 2026

IDOR in CodePeople Booking Calendar Contact Form 1.2.63 and earlier allows remote authenticated users to take over calendars. The dex_bccf_admin_int_calendar_list.inc.php handler trusts a user-controlled calendar key without verifying that the current WordPress user owns the referenced calendar. Subscriber-level access is sufficient to reassign another user's calendar and view the user data stored with it.

CVSS severity5.3
Medium
EPSS probability0.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

IDOR in CodePeople Booking Calendar Contact Form 1.2.63 and earlier allows remote authenticated users to take over calendars. The dex_bccf_admin_int_calendar_list.inc.php handler trusts a user-controlled calendar key without verifying that the current WordPress user owns the referenced calendar. Subscriber-level access is sufficient to reassign another user's calendar and view the user data stored with it.

The record

CVE
CVE-2026-6810
Published
Apr 24, 2026
Updated
Apr 24, 2026
Vendor
CodePeople
Product
Booking Calendar Contact Form
Classifications
CWE-639, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 24, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 24, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=1.2.63

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

CodePeople · Booking Calendar Contact Formversion=0 <=1.2.63

Published CVSS scores

5.3WordfenceCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-639Authorization Bypass Through User-Controlled Key
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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