CVE-2026-42737Network attack vector

Unauthenticated file deletion via Chatbot path traversal

Published May 27, 2026 · Updated May 27, 2026

Path traversal in E4J Vik Booking 1.8.10 and earlier allows remote attackers to delete arbitrary website files through the Chatbot. Published sources do not identify the vulnerable handler or parameter, but establish that a Chatbot-supplied path escapes its intended directory and reaches a file-deletion operation. The Chatbot must be enabled, and its AI or an administrator must answer the first message before deletion becomes reachable; deleting core files can stop the site.

CVSS severity8.6
High
EPSS probability0.36%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in E4J Vik Booking 1.8.10 and earlier allows remote attackers to delete arbitrary website files through the Chatbot. Published sources do not identify the vulnerable handler or parameter, but establish that a Chatbot-supplied path escapes its intended directory and reaches a file-deletion operation. The Chatbot must be enabled, and its AI or an administrator must answer the first message before deletion becomes reachable; deleting core files can stop the site.

The record

CVE
CVE-2026-42737
Published
May 27, 2026
Updated
May 27, 2026
Vendor
E4J s.r.l.
Product
Vik Booking
Classifications
CWE-22, T1485
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 27, 2026CVE publishedPublication date reported by the CVE source.
  2. May 27, 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 <=1.8.9 changes=[{"at":"1.8.10","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

E4J s.r.l. · Vik Bookingversion=0 <=1.8.9 changes=[{"at":"1.8.10","status":"unaffected"}]

Published CVSS scores

8.6PatchstackCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

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.

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

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-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1485Data Destruction

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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