CVE-2026-16143Network attack vectorHinoki check available

Browser script execution via unescaped checkout email

Published Aug 5, 2026 · Updated Aug 5, 2026

Stored XSS in E4J Vik Rent Items 1.2.1 and earlier allows remote attackers to run scripts via a crafted checkout email. The saveorder() function stores the customer email after sanitize_text_field(), and the editorder template writes it into an input value without esc_attr(). Submitting a booking requires no authentication; the script executes when a user opens the affected order page, enabling browser-context data access or actions.

CVSS severity7.2
High
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Stored XSS in E4J Vik Rent Items 1.2.1 and earlier allows remote attackers to run scripts via a crafted checkout email. The saveorder() function stores the customer email after sanitize_text_field(), and the editorder template writes it into an input value without esc_attr(). Submitting a booking requires no authentication; the script executes when a user opens the affected order page, enabling browser-context data access or actions.

The record

CVE
CVE-2026-16143
Published
Aug 5, 2026
Updated
Aug 5, 2026
Vendor
E4J s.r.l.
Product
VikRentItems Flexible Rental Management System
Classifications
CWE-79, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 5, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 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 <=1.2.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

E4J s.r.l. · VikRentItems Flexible Rental Management Systemversion=0 <=1.2.1

Published CVSS scores

7.2WordfenceCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/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.

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-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1189Drive-by Compromise

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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