CVE-2021-24519Network attack vector

Stored XSS via unsanitized Characteristic label

Published Aug 16, 2021 · Updated Aug 3, 2024

Stored XSS in E4J Vik Rent Car before 1.1.10 allows remote authenticated users to execute script via a crafted Characteristic label. The add and edit workflow stores the Text Next to Icon field without sanitizing its untrusted content before the value is rendered. Administrator-level access is required to plant the payload, which then executes in the browser of a user who views the affected Characteristic.

CVSS severity4.8
Medium
EPSS probability0.61%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in E4J Vik Rent Car before 1.1.10 allows remote authenticated users to execute script via a crafted Characteristic label. The add and edit workflow stores the Text Next to Icon field without sanitizing its untrusted content before the value is rendered. Administrator-level access is required to plant the payload, which then executes in the browser of a user who views the affected Characteristic.

The record

CVE
CVE-2021-24519
Published
Aug 16, 2021
Updated
Aug 3, 2024
Vendor
E4J s.r.l.
Product
Vik Rent Car
Classifications
CWE-79
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Aug 16, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record 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=1.1.10 <1.1.10

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

E4J s.r.l. · Vik Rent Carversion=1.1.10 <1.1.10

Published CVSS scores

4.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:R/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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

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

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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