Critical unrestricted upload in llisoft MTA 4.5 OpenController URL
CVE-2025-5171 Published on May 26, 2025
llisoft MTA Maita Training System OpenController.java this.fileService.download unrestricted upload
A vulnerability, which was classified as critical, has been found in llisoft MTA Maita Training System 4.5. This issue affects the function this.fileService.download of the file com\llisoft\controller\OpenController.java. The manipulation of the argument url leads to unrestricted upload. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Timeline
Advisory disclosed
VulDB entry created
VulDB entry last update
Weakness Types
What is an Unrestricted File Upload Vulnerability?
The software allows the attacker to upload or transfer files of dangerous types that can be automatically processed within the product's environment.
CVE-2025-5171 has been classified to as an Unrestricted File Upload vulnerability or weakness.
What is an Authorization Vulnerability?
The software does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
CVE-2025-5171 has been classified to as an Authorization vulnerability or weakness.
Products Associated with CVE-2025-5171
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Affected Versions
llisoft MTA Maita Training System Version 4.5 is affected by CVE-2025-5171Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.