CVE-2023-28485 : What You Need to Know

A stored cross-site scripting (Stored XSS) vulnerability in file preview in WeKan before version 6.75 has been identified. This vulnerability allows remote authenticated users to inject arbitrary web script or HTML via names of file attachments. Users with BoardAdmin access within their own board can potentially exploit this vulnerability to rename attachments without proper XSS payload blocking.

Understanding CVE-2023-28485

This section delves into the specifics of CVE-2023-28485, shedding light on what it entails and its potential impact.

What is CVE-2023-28485?

CVE-2023-28485 is a stored cross-site scripting (Stored XSS) vulnerability found in the file preview feature of WeKan before version 6.75. This flaw enables authenticated remote users to insert malicious web script or HTML through the names of file attachments, posing a risk to system integrity.

The Impact of CVE-2023-28485

The impact of this vulnerability is significant as it allows attackers to execute arbitrary code within the context of the affected website. This could lead to unauthorized actions, data theft, or further exploitation of user information, jeopardizing the overall security of the system.

Technical Details of CVE-2023-28485

Explore the technical aspects of CVE-2023-28485 to better understand its implications and how it affects systems.

Vulnerability Description

The vulnerability in WeKan before version 6.75 enables remote authenticated users to perform stored cross-site scripting attacks by manipulating the names of file attachments during file preview, potentially leading to unauthorized script execution.

Affected Systems and Versions

All versions of WeKan before 6.75 are affected by this vulnerability. Users utilizing WeKan in this version range are at risk of exploitation by remote authenticated attackers seeking to inject malicious scripts.

Exploitation Mechanism

By leveraging the ability to rename file attachments within their own board with BoardAdmin access, attackers can circumvent XSS payload blocking and inject harmful web scripts or HTML, exploiting the vulnerability present in the file preview feature.

Mitigation and Prevention

Protecting systems from CVE-2023-28485 requires immediate action and the implementation of security best practices to mitigate risks effectively.

Immediate Steps to Take

Upgrade WeKan to version 6.75 or above to eliminate the vulnerability and protect against potential attacks.
Monitor file attachments and user activities within WeKan to detect any suspicious behavior that could indicate exploitation attempts.

Long-Term Security Practices

Educate users on safe attachment handling practices and the risks associated with opening files from untrusted sources.
Regularly update and patch WeKan to ensure that security vulnerabilities are promptly addressed, reducing the likelihood of successful exploitation.

Patching and Updates

Stay informed about security advisories and updates released by WeKan to promptly apply patches that address known vulnerabilities. Regularly check for software updates and security recommendations to enhance the overall security posture of the system.