CVE-2025-25224Network attack vector

Unauthenticated server file disclosure via download endpoint

Published Feb 18, 2025 · Updated Feb 18, 2025

Missing authentication in LuxSoft LuxCal Web Calendar before 5.3.3M and 5.3.3L allows remote attackers to read server files via dloader.php. The dloader.php endpoint reaches its file-return operation without first verifying an authenticated session. Network reachability to the calendar is sufficient; no login or user interaction is required, and the documented consequence is file disclosure only.

CVSS severity7.5
High
EPSS probability0.58%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authentication in LuxSoft LuxCal Web Calendar before 5.3.3M and 5.3.3L allows remote attackers to read server files via dloader.php. The dloader.php endpoint reaches its file-return operation without first verifying an authenticated session. Network reachability to the calendar is sufficient; no login or user interaction is required, and the documented consequence is file disclosure only.

The record

CVE
CVE-2025-25224
Published
Feb 18, 2025
Updated
Feb 18, 2025
Vendor
LuxSoft
Product
LuxCal Web Calendar
Classifications
CWE-306, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 18, 2025CVE publishedPublication date reported by the CVE source.
  2. Feb 18, 2025Record 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 5.3.3L (SQLite version)
  2. Affected versionversion=prior to 5.3.3M (MySQL version)

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

LuxSoft · LuxCal Web Calendarversion=prior to 5.3.3L (SQLite version); version=prior to 5.3.3M (MySQL version)

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
5.3JPCERT/CCCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-306Missing Authentication for Critical Function
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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