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CVE-2020-7691 Explained : Impact and Mitigation

Learn about CVE-2020-7691, a Cross-site Scripting (XSS) vulnerability in jspdf allowing attackers to inject malicious scripts. Find mitigation steps and long-term security practices here.

In all versions of the package jspdf, a Cross-site Scripting (XSS) vulnerability exists due to improper filtering of certain characters. This could allow an attacker to inject malicious scripts into web pages.

Understanding CVE-2020-7691

This CVE identifies a security issue in the jspdf package that could lead to XSS attacks.

What is CVE-2020-7691?

This CVE pertains to a Cross-site Scripting vulnerability in jspdf, enabling attackers to bypass regex filtering by using specific characters.

The Impact of CVE-2020-7691

The vulnerability has a CVSS base score of 6.3, indicating a medium severity issue. Attackers can exploit this to execute malicious scripts on affected web pages.

Technical Details of CVE-2020-7691

This section delves into the technical aspects of the vulnerability.

Vulnerability Description

The flaw in jspdf allows the injection of scripts using certain characters, circumventing regex filtering.

Affected Systems and Versions

        Product: jspdf
        Vendor: Not applicable
        Versions affected: Custom version 0

Exploitation Mechanism

        Attack Complexity: Low
        Attack Vector: Network
        Privileges Required: None
        User Interaction: Required
        Exploit Code Maturity: Proof of Concept
        Scope: Unchanged

Mitigation and Prevention

Protecting systems from CVE-2020-7691 requires immediate actions and long-term security practices.

Immediate Steps to Take

        Update jspdf to the latest version that includes a fix for the XSS vulnerability.
        Implement input validation to sanitize user inputs and prevent script injection.

Long-Term Security Practices

        Regularly monitor and audit web applications for security vulnerabilities.
        Educate developers on secure coding practices to prevent XSS attacks.

Patching and Updates

        Apply official fixes provided by the jspdf package maintainers to address the XSS vulnerability.

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