Description
An issue was discovered in Joomla! 3.0.0 through 3.10.6 & 4.0.0 through 4.1.0. Uploading a file name of an excess length causes the error. This error brings up the screen with the path of the source code of the web application.
Remediation
References
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YOURLS Exposure of Sensitive Information to an Unauthorized Actor Vulnerability (CVE-2011-3824)