SB2016090704 - Directory traversal and XSS in WordPress 

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Main Vulnerability Database SB2016090704

SB2016090704 - Directory traversal and XSS in WordPress

Published: September 7, 2016

Security Bulletin ID SB2016090704
Severity
Medium
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

Medium 50% Low 50%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Directory traversal in upgrade package uploader (CVE-ID: CVE-2016-7169)

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to insufficient sanitization of input data within the upgrade package uploader. A remote authenticated user can use directory traversal sequences to write files outside the webroot directory.

Successful exploitation of this vulnerability may lead to website compromise.


2) Cross-site scripting in /wp-admin/includes/media.php script (CVE-ID: CVE-2016-7168)

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability is caused by incorrect filtration of input data passed via image filename in /wp-admin/includes/media.php script. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in website administrator’s browser in security context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.


Remediation

Install update from vendor's website.

References