CVE-2026-42762Public exploitNetwork attack vector

Unauthenticated browser script execution

Published May 27, 2026 · Updated May 27, 2026

DOM-based XSS in E4J s.r.l. Vik Booking 1.8.9 and earlier allows remote attackers to execute script in a victim's browser. Patchstack identifies client-side DOM processing as the vulnerable locus but does not disclose the affected script, DOM source, DOM sink, or unsafe operation. Exploitation is unauthenticated over the network but requires user interaction with attacker-controlled content; resulting script runs in the affected site's browser context.

CVSS severity7.1
High
EPSS probability0.14%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

DOM-based XSS in E4J s.r.l. Vik Booking 1.8.9 and earlier allows remote attackers to execute script in a victim's browser. Patchstack identifies client-side DOM processing as the vulnerable locus but does not disclose the affected script, DOM source, DOM sink, or unsafe operation. Exploitation is unauthenticated over the network but requires user interaction with attacker-controlled content; resulting script runs in the affected site's browser context.

The record

CVE
CVE-2026-42762
Published
May 27, 2026
Updated
May 27, 2026
Vendor
E4J s.r.l.
Product
Vik Booking
Classifications
CWE-79, T1189
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

7.1PatchstackCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

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 exploitPublished

Weakness, pattern, technique

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

Public exploit references

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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