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CVE-2024-34064 Input validation

Routine
Remediate Within 6 Months

CVE Information

Original CVE data

Published:
Updated:

Jinja is an extensible templating engine. The `xmlattr` filter in affected versions of Jinja accepts keys containing non-attribute characters. XML/HTML attributes cannot contain spaces, `/`, `>`, or `=`, as each would then be interpreted as starting a separate attribute. If an application accepts keys (as opposed to only values) as user input, and renders these in pages that other users see as well, an attacker could use this to inject other attributes and perform XSS. The fix for CVE-2024-22195 only addressed spaces but not other characters. Accepting keys as user input is now explicitly considered an unintended use case of the `xmlattr` filter, and code that does so without otherwise validating the input should be flagged as insecure, regardless of Jinja version. Accepting _values_ as user input continues to be safe. This vulnerability is fixed in 3.1.4.

CWE:
CVSS v2-
CVSS v3-
References
https://github.com/pallets/jinja/security/advisories/GHSA-h75v-3vvj-5mfj
https://github.com/pallets/jinja/commit/0668239dc6b44ef38e7a6c9f91f312fd4ca581cb
Affected Vendors

Basic Analysis

Common vulnerability metrics

Vulnerabilty type as detected by PRIOnengine

Input validation

CVSS Scores as calculated by PRIOnengine
CVSS v23.5
AV:N/AC:M/AU:S/C:N/I:P/A:N
CVSS v35.3
AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
MITRE CWE Top 25

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Exploits

No exploit code is reported to exist.

Active Exploitation

Vulnerability is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. See the KEV Catalog

Social Network Activity

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Threat Actor Activity

No sightings of the vulnerability within threat reports.

Cybersecurity Frameworks

How the vulnerability maps against various cybersecurity frameworks

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Compliance Impact

How the submited vulnerability affects compliance

PCI DSS v3.2.1-6.5.7 - Cross Site Scripting

Web Application Security Frameworks

Applicable if the issue likely affects a web application

WASC-8 - Cross Site Scripting