Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') Affecting weasyprint package, versions [,69.0)
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Test your applications- Snyk IDSNYK-PYTHON-WEASYPRINT-17824464
- published6 Jul 2026
- disclosed6 Jul 2026
- creditAyushParkara
Introduced: 6 Jul 2026
NewCVE-2026-49452 (opens in a new tab)Common Vulnerabilities and Exposures (CVE) are common identifiers for publicly known security vulnerabilities
Common Weakness Enumeration (CWE) is a category system for software weaknesses
How to fix?
Upgrade weasyprint to version 69.0 or higher.
Overview
weasyprint is a The Awesome Document Factory
Affected versions of this package are vulnerable to Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') in the processing of presentational hints when unescaped attribute values are embedded into CSS. An attacker can inject arbitrary CSS declarations by supplying crafted attribute values, potentially causing server-side requests or altering the rendered output. This is only exploitable if presentational hints are enabled.