CVE-2022-21648 : Security Advisory and Response
Learn about CVE-2022-21648 affecting Latte, an open-source PHP template engine. Explore its impact, technical details, and mitigation strategies here.
Latte is an open-source template engine for PHP that has been found to have a sandbox bypass vulnerability. This vulnerability allows for injection into web pages generated from Latte, potentially leading to XSS attacks. Here's all you need to know about CVE-2022-21648.
Understanding CVE-2022-21648
Latte template engine versions 2.8.0 and above contain a sandbox escape vulnerability, enabling attackers to inject malicious code into web pages.
What is CVE-2022-21648?
Latte, a popular template engine for PHP, is prone to a sandbox bypass vulnerability that permits attackers to execute cross-site scripting attacks. The affected versions range from 2.8.0 to 2.10.7.
The Impact of CVE-2022-21648
The CVSS v3.1 base score for this vulnerability is 8.2, marking it as a high-severity issue. The attack complexity is rated as low, with a required user interaction, and a changed scope.
Technical Details of CVE-2022-21648
Vulnerability Description
The vulnerability arises from a sandbox escape mechanism present in Latte versions 2.8.0 to 2.10.7, enabling threat actors to inject malicious code into generated web pages.
Affected Systems and Versions
Versions >= 2.8.0 and < 2.10.8 are affected, including versions >= 2.9.0, < 2.9.6 and >= 2.10.0, < 2.10.8. Users running these versions are at risk of exploitation.
Exploitation Mechanism
The vulnerability allows for a sandbox bypass in Latte templates, leading to the execution of unauthorized code and potential XSS attacks.
Mitigation and Prevention
Immediate Steps to Take
Users are advised to update to the latest patched versions, including 2.8.8, 2.9.6, and 2.10.8, where the issue has been addressed. Additionally, it is recommended not to accept template inputs from untrusted sources.
Long-Term Security Practices
To enhance security posture, developers should practice secure coding techniques, input validation, and regularly update software dependencies.
Patching and Updates
Regularly monitor security advisories from Latte and apply patches promptly to mitigate the risk of exploitation.