CVE-2026-96573Network attack vectorHinoki check available

Stored script execution via calendar list truncation

Published Oct 1, 2026 · Updated Oct 1, 2026

Stored DOM-based XSS in CodePeople Appointment Hour Booking – Booking Calendar 1.5.97 and earlier allows remote attackers to run scripts via booking fields. The schedule calendar list renderer decodes and truncates stored single-line booking-field content without adequately escaping it before browser insertion. Exploitation requires a published list view with list_readmore_numberofwords set to a positive integer; its default value of 0 bypasses this sink, and a visitor must open the affected page.

CVSS severityUnavailable
Unscored
EPSS probability0.26%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Stored DOM-based XSS in CodePeople Appointment Hour Booking – Booking Calendar 1.5.97 and earlier allows remote attackers to run scripts via booking fields. The schedule calendar list renderer decodes and truncates stored single-line booking-field content without adequately escaping it before browser insertion. Exploitation requires a published list view with list_readmore_numberofwords set to a positive integer; its default value of 0 bypasses this sink, and a visitor must open the affected page.

The record

CVE
CVE-2026-96573
Published
Oct 1, 2026
Updated
Oct 1, 2026
Vendor
CodePeople
Product
Appointment Hour Booking – Booking Calendar
Classifications
T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 1, 2026CVE publishedPublication date reported by the CVE source.
  2. Oct 1, 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 <=1.5.97

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

CodePeople · Appointment Hour Booking – Booking Calendarversion=0 <=1.5.97

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.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1189Drive-by Compromise

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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