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computer vulnerability alert 24036

WordPress Smush Image: directory traversal

Synthesis of the vulnerability

An attacker can traverse directories of WordPress Smush Image, in order to read a file outside the service root path.
Impacted products: WordPress Plugins ~ not comprehensive.
Severity: 2/4.
Creation date: 05/10/2017.
Identifiers: VIGILANCE-VUL-24036.

Description of the vulnerability

The Smush Image plugin can be installed on WordPress.

However, user's data are directly inserted in an access path. Sequences such as "/.." can thus be used to go in the upper directory.

An attacker can therefore traverse directories of WordPress Smush Image, in order to read a file outside the service root path.
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