CVE-2026-9576Public exploitNetwork attack vector

Authenticated attendee PII disclosure via unchecked group ownership

Published Jun 30, 2026 · Updated Jun 30, 2026

Information disclosure in WPManageNinja FluentBooking before 2.1.2 allows remote authenticated users to export other groups' attendee records. The AJAX export action accepts a caller-supplied group_id and generates a CSV without verifying that the Calendar Manager owns that calendar group. A valid nonce and Calendar Manager access are required; successful requests disclose names, email addresses, phone numbers, addresses, and payment information.

CVSS severity4.9
Medium
EPSS probability0.40%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in WPManageNinja FluentBooking before 2.1.2 allows remote authenticated users to export other groups' attendee records. The AJAX export action accepts a caller-supplied group_id and generates a CSV without verifying that the Calendar Manager owns that calendar group. A valid nonce and Calendar Manager access are required; successful requests disclose names, email addresses, phone numbers, addresses, and payment information.

The record

CVE
CVE-2026-9576
Published
Jun 30, 2026
Updated
Jun 30, 2026
Vendor
Mahmudul Hasan Arif
Product
FluentBooking
Classifications
CWE-200, T1213
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 30, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 30, 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 <2.1.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Mahmudul Hasan Arif · FluentBookingversion=0 <2.1.2

Published CVSS scores

4.9CISA-ADPCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-200Information Exposure
T1213Data from Information Repositories

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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