#VU104059 Missing Authentication for Critical Function in LuxCal Web Calendar - CVE-2025-25224

Vulnerability identifier: #VU104059

Vulnerability risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2025-25224

CWE-ID: CWE-306

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
LuxCal Web Calendar
Web applications / Modules and components for CMS

Vendor: LuxSoft

Description

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to missing authentication for critical function in dloader.php. A remote attacker can gain access to sensitive information on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

LuxCal Web Calendar: before 5.3.3L

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External links
https://jvn.jp/en/jp/JVN26024080/
https://www.luxsoft.eu/?download
https://www.luxsoft.eu/lcforum/viewtopic.php?pid=1984#p1984

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.