CVE-2021-34640 : What You Need to Know
Discover the details of CVE-2021-34640, a vulnerability in Securimage-WP-Fixed WordPress plugin up to version 3.5.4 allowing for Reflected Cross-Site Scripting. Learn about the impact, affected versions, and mitigation steps.
A detailed analysis of CVE-2021-34640, a vulnerability in the Securimage-WP-Fixed WordPress plugin that allows for Reflected Cross-Site Scripting.
Understanding CVE-2021-34640
This section provides insight into the nature and impact of the CVE-2021-34640 vulnerability.
What is CVE-2021-34640?
The Securimage-WP-Fixed WordPress plugin, up to version 3.5.4, is susceptible to Reflected Cross-Site Scripting due to the implementation of $_SERVER['PHP_SELF'] in the ~/securimage-wp.php file. This flaw enables malicious actors to inject arbitrary web scripts.
The Impact of CVE-2021-34640
With a CVSS base score of 6.1 (Medium severity), this vulnerability poses a threat to confidentiality and integrity by permitting attackers to execute scripts within the context of the target user's session.
Technical Details of CVE-2021-34640
Explore the specific technical aspects of CVE-2021-34640 and how it affects systems.
Vulnerability Description
The vulnerability arises from the improper usage of $_SERVER['PHP_SELF'] in the Securimage-WP-Fixed WordPress plugin, facilitating the injection of malicious web scripts.
Affected Systems and Versions
All versions of the Securimage-WP-Fixed plugin up to and including 3.5.4 are impacted by this vulnerability.
Exploitation Mechanism
Attackers can exploit this flaw by injecting malicious scripts via the vulnerable ~/securimage-wp.php file, leading to Cross-Site Scripting attacks.
Mitigation and Prevention
Discover effective measures to mitigate the risks associated with CVE-2021-34640.
Immediate Steps to Take
To address this issue, it is recommended to uninstall the Securimage-WP-Fixed plugin from affected systems.
Long-Term Security Practices
Implementing a robust web application security strategy, including regular security audits and timely plugin updates, can help prevent similar vulnerabilities in the future.
Patching and Updates
Stay vigilant for security advisories and promptly install patches or updates released by the plugin vendor to safeguard against known vulnerabilities.