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CVE-2026-49452

6.5 Moyenne

Publiée le 18/08/2026 à 20:17 · Modifiée le 23/10/2026 à 00:10 · Analyse NVD reportée · Source : security-advisories@github.com

Description

WeasyPrint helps web developers to create PDF documents. Prior to 69.0, WeasyPrint embeds unescaped HTML presentational-hint attribute values into CSS in weasyprint/css/__init__.py when presentational_hints=True. The background attribute is inserted into a background-image:url() declaration and parsed by tinycss2.parse_blocks_contents(), allowing untrusted HTML to inject additional CSS declarations. Applications that render untrusted HTML with presentational hints enabled can be affected by CSS injection and server-side requests through injected url() values. This issue is fixed in version 69.0.

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Produits concernés

Scores CVSS

VersionScoreSourceVecteur
3.1 6.5 Moyenne security-advisories@github.com CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Faiblesses (CWE)

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