CVE-2022-25875 : What You Need to Know
Discover the details of CVE-2022-25875, a Medium severity Cross-site Scripting (XSS) vulnerability in Svelte before 3.49.0. Learn about the impact, affected systems, exploitation, and mitigation steps.
A detailed overview of CVE-2022-25875 focusing on Cross-site Scripting (XSS) vulnerability in Svelte before version 3.49.0.
Understanding CVE-2022-25875
This CVE pertains to a Cross-site Scripting (XSS) vulnerability identified in the Svelte package before version 3.49.0. The vulnerability stems from improper input sanitization and escape of attributes during Server-Side Rendering (SSR).
What is CVE-2022-25875?
The package 'Svelte' versions earlier than 3.49.0 are susceptible to XSS due to inadequate input sanitization and attribute escape when using objects during SSR. Attackers can exploit this flaw via objects with a custom toString() function.
The Impact of CVE-2022-25875
The CVSS v3.1 base score for CVE-2022-25875 is 5.4, indicating a Medium severity vulnerability. It requires user interaction for exploitation and can lead to low confidentiality and integrity impacts.
Technical Details of CVE-2022-25875
This section provides more detailed insights into the vulnerability.
Vulnerability Description
The vulnerability in Svelte before 3.49.0 allows for Cross-site Scripting (XSS) attacks via object manipulation with a custom toString() function.
Affected Systems and Versions
The vulnerability affects Svelte versions prior to 3.49.0, impacting users who have not updated to the latest version.
Exploitation Mechanism
Attackers can exploit this vulnerability by crafting objects with a customized toString() function, leveraging improper input sanitization.
Mitigation and Prevention
Guidelines to mitigate the risks associated with CVE-2022-25875.
Immediate Steps to Take
Users are advised to update Svelte to version 3.49.0 or higher to eliminate the XSS vulnerability.
Long-Term Security Practices
Implement secure coding practices, conduct regular security audits, and stay informed about potential vulnerabilities in third-party packages.
Patching and Updates
Stay informed about security updates from the Svelte team and apply patches promptly to address known vulnerabilities.