Description
WordPress Plugin Image Optimizer by 10web-Image Optimizer and Compression is prone to multiple vulnerabilities, including cross-site scripting and directory traversal vulnerabilities. Exploiting these issues may allow an attacker to execute arbitrary script code in the browser of an unsuspecting user in the context of the affected site, allowing the attacker to steal cookie-based authentication credentials, or to obtain sensitive information that could aid in further attacks. WordPress Plugin Image Optimizer by 10web-Image Optimizer and Compression version 1.0.26 is vulnerable; prior versions may also be affected.
Remediation
Update to plugin version 1.0.27 or latest
References
https://sploitus.com/exploit?id=WPEX-ID:44024299-BA40-4DA7-81E1-BD44D10846F3
https://sploitus.com/exploit?id=WPEX-ID:936FD93A-428D-4744-A4FC-C8DA78DCBE78
https://plugins.svn.wordpress.org/image-optimizer-wd/trunk/readme.txt