CVE-2026-76586Network attack vectorHinoki check available

Unauthenticated underpayment via unchecked PayPal confirmation

Published Aug 29, 2026 · Updated Aug 29, 2026

Improper access control in Repute InfoSystems BookingPress 1.5.6 through 1.6.2 allows remote attackers to underpay for appointments. The PayPal payment-confirmation path approves a staged booking without comparing the reported payment amount with the server-side service price. No account or user interaction is required; a crafted confirmation marks an appointment paid while transferring only a fraction of its configured price.

CVSS severity7.5
High
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Improper access control in Repute InfoSystems BookingPress 1.5.6 through 1.6.2 allows remote attackers to underpay for appointments. The PayPal payment-confirmation path approves a staged booking without comparing the reported payment amount with the server-side service price. No account or user interaction is required; a crafted confirmation marks an appointment paid while transferring only a fraction of its configured price.

The record

CVE
CVE-2026-76586
Published
Aug 29, 2026
Updated
Aug 29, 2026
Vendor
Repute InfoSystems
Product
BookingPress
Classifications
CWE-284, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 29, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 29, 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=1.5.6 <1.6.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Repute InfoSystems · BookingPressversion=1.5.6 <1.6.3

Published CVSS scores

7.5CISACVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-284Improper Access Control
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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