CVE-2023-33195 : What You Need to Know

Craft CMS XSS in RSS widget feed is a vulnerability that allows for Cross-Site Scripting (XSS) attacks via a malformed RSS feed in Craft CMS versions 4.3.0 to 4.4.5. The issue was addressed in version 4.4.6.

Understanding CVE-2023-33195

Craft CMS XSS in RSS widget feed vulnerability impacts Craft CMS versions 4.3.0 to 4.4.5, allowing attackers to execute XSS attacks through a specially crafted RSS feed.

What is CVE-2023-33195?

Craft CMS XSS in RSS widget feed is a security flaw that enables Cross-Site Scripting attacks by exploiting an issue in how Craft CMS handles RSS feeds. By delivering a malicious payload through a malformed RSS feed, an attacker can inject and execute arbitrary scripts on the target system.

The Impact of CVE-2023-33195

The impact of this vulnerability is significant as it allows malicious actors to execute scripts in the context of a victim's web browser, potentially leading to unauthorized actions, data theft, or defacement of the website.

Technical Details of CVE-2023-33195

Craft CMS XSS in RSS widget feed vulnerability has the following technical details:

Vulnerability Description

The vulnerability arises from improper handling of input in the RSS widget feed feature, leading to XSS payload execution.

Affected Systems and Versions

Craft CMS versions 4.3.0 to 4.4.5 are affected by this vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability by crafting a malicious RSS feed containing XSS payloads and tricking users into accessing the feed, thereby executing the injected scripts.

Mitigation and Prevention

To address CVE-2023-33195 and prevent exploitation, consider the following measures:

Immediate Steps to Take

Users are advised to update their Craft CMS installations to version 4.4.6 or newer, which contains the necessary patches to mitigate the XSS vulnerability.

Long-Term Security Practices

Regularly monitor security advisories and updates from Craft CMS to stay informed about potential vulnerabilities and apply patches promptly to secure your systems.

Patching and Updates

Craft CMS has released version 4.4.6, which includes the fix for this vulnerability. Ensure that all affected systems are updated to the latest patched version to prevent exploitation.