SB2016062106 - Multiple vulnerabilities in in PHP

Description

This security bulletin contains information about 2 secuirty vulnerabilities.

1) Cross-site scripting (CVE-ID: CVE-2016-5833)

Vulnerability allows a remote attacker to perform XSS attacks.

The vulnerability is caused by an input validation error in the column_title function in wp-admin/includes/class-wp-media-list-table.php in WordPress before 4.5.3. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in victim'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.

2) Cross-site scripting (CVE-ID: CVE-2016-5834)

Vulnerability allows a remote attacker to perform Cross-site scripting attacks.

An input validation error exists in the wp_get_attachment_link function in wp-includes/post-template.php in WordPress before 4.5.3. A remote authenticated attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in victim'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

• https://wordpress.org/news/2016/06/wordpress-4-5-3/
• https://github.com/WordPress/WordPress/commit/4372cdf45d0f49c74bbd4d60db7281de83e32648