CVE-2023-5917 : Vulnerability Insights and Analysis

This CVE record details a cross-site scripting vulnerability in phpBB Smiley Pack's acp_icons.php main file affecting versions up to 3.3.10.

Understanding CVE-2023-5917

This vulnerability allows remote attackers to execute cross-site scripting attacks through manipulation of the 'pak' argument in the Smiley Pack Handler component.

What is CVE-2023-5917?

The vulnerability found in phpBB up to version 3.3.10 affects the 'main' function of the 'acp_icons.php' file in the Smiley Pack Handler component. Exploiting the 'pak' argument leads to cross-site scripting, enabling remote attacks. Upgrading to version 3.3.11 addresses this issue with the patch named 'ccf6e6c255d38692d72fcb613b113e6eaa240aac'.

The Impact of CVE-2023-5917

With a CVSSv2 base score of 3.3 and a CVSSv3 base score of 2.4, this vulnerability has been rated as LOW severity. However, it poses a risk of unauthorized script execution by malicious actors.

Technical Details of CVE-2023-5917

This vulnerability, classified as CWE-79 (Cross-Site Scripting), specifically affects phpBB versions 3.3.0 to 3.3.10 within the Smiley Pack Handler module.

Vulnerability Description

The flaw exists in the 'main' function of 'acp_icons.php' where manipulating the 'pak' argument can lead to cross-site scripting attacks.

Affected Systems and Versions

Vendor: n/a
Product: phpBB
Versions: 3.3.0 to 3.3.10

Exploitation Mechanism

Remote attackers can exploit this vulnerability by tampering with the 'pak' parameter, potentially executing arbitrary scripts on vulnerable systems.

Mitigation and Prevention

To address CVE-2023-5917 and prevent exploitation, follow these recommended steps:

Immediate Steps to Take

Upgrade the phpBB installation to version 3.3.11 promptly.
Apply the provided patch 'ccf6e6c255d38692d72fcb613b113e6eaa240aac' to mitigate the vulnerability.

Long-Term Security Practices

Regularly update software to the latest versions to patch known vulnerabilities.
Implement robust security measures and practices to reduce the risk of cross-site scripting attacks.

Patching and Updates

Access the patch 'ccf6e6c255d38692d72fcb613b113e6eaa240aac' at the GitHub link provided.
Stay informed about security updates and releases from phpBB to stay protected against potential threats.