SB2019012704 - Insecure deserialization in Yet Another Stars Rating plugin for WordPress
Published: January 27, 2019 Updated: January 30, 2019
Security Bulletin ID
SB2019012704
Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Deserialization of Untrusted Data (CVE-ID: N/A)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to insecure input validation when processing serialized data with unserializae() function in "/lib/yasr-functions.php" file. A remote attacker can pass specially crafted data via HTTP cookie to the application and execute arbitrary PHP code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Install update from vendor's website.