CVE-2021-34625 : What You Need to Know
Learn about CVE-2021-34625, a Cross-Site Scripting vulnerability in WP Upload Restriction plugin version <= 2.2.3. Discover impact, affected versions, and mitigation steps.
A vulnerability in the saveCustomType function of the WP Upload Restriction WordPress plugin allows low-level authenticated users to inject arbitrary web scripts. This issue affects versions 2.2.3 and prior.
Understanding CVE-2021-34625
This CVE involves an authenticated stored Cross-Site Scripting (XSS) vulnerability in the WP Upload Restriction plugin.
What is CVE-2021-34625?
CVE-2021-34625 refers to a flaw in the WP Upload Restriction plugin that permits low-level authenticated users to insert malicious scripts.
The Impact of CVE-2021-34625
The impact of this vulnerability is rated as MEDIUM severity with a CVSS base score of 6.4. It can lead to the injection of arbitrary web scripts by authenticated users.
Technical Details of CVE-2021-34625
This section delves into the specifics of the vulnerability.
Vulnerability Description
The vulnerability allows authenticated users to perform a Cross-Site Scripting attack through the plugin's saveCustomType function.
Affected Systems and Versions
Versions of WP Upload Restriction up to 2.2.3 are affected by this vulnerability.
Exploitation Mechanism
Low-level authenticated users can exploit this flaw to insert harmful web scripts into the plugin.
Mitigation and Prevention
Protective measures and actions to address CVE-2021-34625.
Immediate Steps to Take
To mitigate the risk, uninstall the WP Upload Restriction plugin from your WordPress site immediately.
Long-Term Security Practices
Ensure regular security audits, updates, and user permissions review to prevent similar vulnerabilities.
Patching and Updates
Stay informed about security patches and promptly apply any updates released by the plugin developer.