CVE-2024-34064

CVSS 3.1 Score 5.4 of 10 (medium)

Details

Published May 6, 2024
Updated: Jun 10, 2024
CWE ID 79

Summary

CVE-2024-34064 is a new vulnerability affecting Jinja, an extensible templating engine. The `xmlattr` filter, present in impacted versions, accepts keys with non-attribute characters, which are not allowed in XML/HTML attributes. An attacker who can provide keys as user input may inject unwanted attributes, potentially leading to Cross-Site Scripting (XSS) attacks. Previous patch CVE-2024-22195 only addressed space characters in keys, but not others. Jinja now considers accepting keys as user input an unintended use case of the `xmlattr` filter. Code that does so without proper input validation is considered insecure. The vulnerability is addressed in version 3.1.4.

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