Unauthenticated customer data modification via email matching
Published Jul 3, 2026 · Updated Jul 3, 2026
Missing authorization in LatePoint 5.6.1 and earlier allows remote attackers to overwrite existing customers' personal data. The process_step_customer() booking step matches a submitted email to an existing customer and updates first name, last name, phone, and notes without verifying ownership. The unauthenticated path requires guest bookings to be enabled, and the attacker must know the target customer's email address.
Summary
What happened
Missing authorization in LatePoint 5.6.1 and earlier allows remote attackers to overwrite existing customers' personal data. The process_step_customer() booking step matches a submitted email to an existing customer and updates first name, last name, phone, and notes without verifying ownership. The unauthenticated path requires guest bookings to be enabled, and the attacker must know the target customer's email address.
The record
- CVE
- CVE-2026-11398
- Published
- Jul 3, 2026
- Updated
- Jul 3, 2026
- Vendor
- LatePoint
- Product
- LatePoint
- Classifications
- CWE-862, T1565.001
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 3, 2026CVE publishedPublication date reported by the CVE source.
- Jul 3, 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.
- Affected versionversion=0 <=5.6.1
What conditions does exploitation require?
What is affected?
Published CVSS scores
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.
Public exploit references
- LatePoint customer-data modification exploit strategyproof of concept · unverified
- CVE-2026-11398 LatePoint proof of conceptproof of concept · unverified
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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