CVE-2026-90650Network attack vector

Stored script execution via unescaped webhook identifier

Published Sep 15, 2026 · Updated Sep 15, 2026

Stored XSS in JetMonsters MotoPress Hotel Booking 6.2.4 and earlier allows remote attackers to run script in an administrator's browser. The premium Stripe webhook listener accepts forged events when its optional signing secret is empty, then writes the attacker-controlled event object id to the payment log and echoes it without escaping. Exploitation requires a valid Stripe PaymentIntent ID for an existing payment, and script execution occurs when an administrator views that payment.

CVSS severityUnavailable
Unscored
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in JetMonsters MotoPress Hotel Booking 6.2.4 and earlier allows remote attackers to run script in an administrator's browser. The premium Stripe webhook listener accepts forged events when its optional signing secret is empty, then writes the attacker-controlled event object id to the payment log and echoes it without escaping. Exploitation requires a valid Stripe PaymentIntent ID for an existing payment, and script execution occurs when an administrator views that payment.

The record

CVE
CVE-2026-90650
Published
Sep 15, 2026
Updated
Sep 15, 2026
Vendor
JetMonsters
Product
MotoPress Hotel Booking
Classifications
T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 15, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 15, 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 <=6.2.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

JetMonsters · MotoPress Hotel Bookingversion=0 <=6.2.4

Published CVSS scores

No CVSS assessment is available in this record.

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

T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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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