Description
WordPress Plugin Smush Image Compression and Optimization is prone to a directory traversal vulnerability because it fails to sufficiently verify user-supplied input. Exploiting this issue can allow an attacker to obtain sensitive information that could aid in further attacks. WordPress Plugin Smush Image Compression and Optimization version 2.7.5 is vulnerable; prior versions may also be affected.
Remediation
Update to plugin version 2.7.6 or latest
References
https://packetstormsecurity.com/files/144494/WordPress-Smush-Image-2.7.4.1-Directory-Traversal.html
https://wordpress.org/support/topic/file-transversal-bug/
https://plugins.svn.wordpress.org/wp-smushit/trunk/readme.txt
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