An issue was discovered in Joomla! 2.5.0 through 3.9.22. The folder parameter of mod_random_image lacked input validation, leading to a path traversal vulnerability.
The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.
Link | Tags |
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https://developer.joomla.org/security-centre/830-20201103-core-path-traversal-in-mod-random-image.html | vendor advisory |