CVE-2020-15299 : Exploit Details and Defense Strategies
Learn about CVE-2020-15299, a reflected Cross-Site Scripting (XSS) Vulnerability in the KingComposer plugin for WordPress, allowing remote attackers to execute malicious JavaScript in victims' browsers.
A reflected Cross-Site Scripting (XSS) Vulnerability in the KingComposer plugin through 2.9.4 for WordPress allows remote attackers to execute malicious JavaScript in a victim's browser.
Understanding CVE-2020-15299
This CVE involves a security vulnerability in the KingComposer plugin for WordPress that enables attackers to perform a reflected XSS attack.
What is CVE-2020-15299?
This CVE identifies a reflected Cross-Site Scripting (XSS) Vulnerability in the KingComposer plugin for WordPress, allowing attackers to execute malicious JavaScript in a victim's browser.
The Impact of CVE-2020-15299
The vulnerability enables remote attackers to trick victims into executing malicious JavaScript, potentially leading to unauthorized actions on the victim's behalf.
Technical Details of CVE-2020-15299
The following technical details provide insight into the specifics of this CVE.
Vulnerability Description
The vulnerability in the KingComposer plugin through version 2.9.4 allows attackers to execute base64-encoded JavaScript in a victim's browser via an install_online_preset AJAX request.
Affected Systems and Versions
- Product: KingComposer plugin
- Vendor: N/A
- Versions: Up to and including 2.9.4
Exploitation Mechanism
Attackers can exploit this vulnerability by manipulating the kc-online-preset-data POST parameter to execute malicious JavaScript in the victim's browser.
Mitigation and Prevention
To address and prevent the exploitation of CVE-2020-15299, consider the following measures.
Immediate Steps to Take
- Update the KingComposer plugin to the latest version to patch the vulnerability.
- Monitor and filter input data to prevent malicious JavaScript execution.
Long-Term Security Practices
- Regularly update all plugins and themes to mitigate potential vulnerabilities.
- Educate users on safe browsing practices to minimize the risk of XSS attacks.
Patching and Updates
Ensure timely installation of security patches and updates to protect against known vulnerabilities.