CVE-2023-33962
MediumCVSS 5.4Exploitation Probability (EPSS)
Low risk43th percentile - higher than 43% of all known CVEs
Summary
JStachio is a type-safe Java Mustache templating engine. Prior to version 1.0.1, JStachio fails to escape single quotes `'` in HTML, allowing an attacker to inject malicious code.
Risk Assessment
Exploitation of this vulnerability can lead to the execution of arbitrary JavaScript code in the context of other users, resulting in session hijacking, defacement of web pages, and theft of sensitive information.
Recommendation
It is recommended to upgrade to version 1.0.1, which contains a patch. Additionally, the template engine should properly escape special characters, including single quotes.
Original NVD description (English source)
JStachio is a type-safe Java Mustache templating engine. Prior to version 1.0.1, JStachio fails to escape single quotes `'` in HTML, allowing an attacker to inject malicious code. This vulnerability can be exploited by an attacker to execute arbitrary JavaScript code in the context of other users visiting pages that use this template engine. This can lead to various consequences, including session hijacking, defacement of web pages, theft of sensitive information, or even the propagation of malware. Version 1.0.1 contains a patch for this issue. To mitigate this vulnerability, the template engine should properly escape special characters, including single quotes. Common practice is to escape `'` as `'`. As a workaround, users can avoid this issue by using only double quotes `"` for HTML attributes.