CVE-2023-47175Network attack vector

Browser script execution via unsanitized calendar input

Published Nov 20, 2023 · Updated Aug 29, 2024

Cross-site scripting in LuxSoft LuxCal Web Calendar before 5.2.4M or 5.2.4L allows remote attackers to run arbitrary script in a visitor's browser. The MySQL and SQLite editions pass unsanitized calendar input from GET, POST, and COOKIE variables into generated web content instead of validating fixed-format values. No account is required, but a user must access the affected page for the injected script to execute; published sources do not identify the specific endpoint or parameter.

CVSS severity6.1
Medium
EPSS probability0.68%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in LuxSoft LuxCal Web Calendar before 5.2.4M or 5.2.4L allows remote attackers to run arbitrary script in a visitor's browser. The MySQL and SQLite editions pass unsanitized calendar input from GET, POST, and COOKIE variables into generated web content instead of validating fixed-format values. No account is required, but a user must access the affected page for the injected script to execute; published sources do not identify the specific endpoint or parameter.

The record

CVE
CVE-2023-47175
Published
Nov 20, 2023
Updated
Aug 29, 2024
Vendor
LuxSoft
Product
LuxCal Web Calendar
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 20, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 29, 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=prior to 5.2.4L (SQLite version)
  2. Affected versionversion=prior to 5.2.4M (MySQL version)

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

LuxSoft · LuxCal Web Calendarversion=prior to 5.2.4L (SQLite version); version=prior to 5.2.4M (MySQL version)

Published CVSS scores

6.1JPCERT/CCCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
4.3JPCERT/CCAV:N/AC:M/Au:N/C:N/I:P/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')
T1059.007Command and Scripting Interpreter: JavaScript

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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