SB2015042310 - Fedora 21 update for wordpress
Published: April 23, 2015 Updated: April 24, 2025
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 3 secuirty vulnerabilities.
1) Cross-site scripting (CVE-ID: CVE-2015-3438)
Vulnerability allows a remote attacker to perform Cross-site scripting attacks.
An input validation error exists in WordPress before 4.1.2, when MySQL is used without strict mode, when processing a (1) four-byte UTF-8 character or (2) invalid character that reaches the database layer, as demonstrated by a crafted character in a comment. 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-2015-3439)
Vulnerability allows a remote attacker to perform Cross-site scripting attacks.
An input validation error exists in the Ephox (formerly Moxiecode) plupload.flash.swf shim 2.1.2 in Plupload, as used in WordPress 3.9.x, 4.0.x, and 4.1.x before 4.1.2 and other products, when processing target parameter, as demonstrated by executing a certain click function, related to _init.as and _fireEvent.as. 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.
3) Cross-site scripting (CVE-ID: CVE-2015-3440)
Vulnerability allows a remote attacker to perform Cross-site scripting attacks.
An input validation error exists in wp-includes/wp-db.php in WordPress before 4.2.1. 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.