CVE-2026-49452

Katalog CVE

CVSS 6.5 · Medium EPSS 0,37%

Kerentanan Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection'). Skor CVSS 3.1 6.5 (Medium) menurut github.com.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

18 Agustus 2026

Terakhir diubah

18 September 2026

Status NVD

Deferred

CVSS 3.1

6.5 (Medium), sumber github.com
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

EPSS (30 hari)

0,37% peluang dieksploitasi; lebih tinggi dari 29,3% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• https://github.com/Kozea/WeasyPrint/commit/e158264e33fa399b29f415d30719c1d85a55df1d
• https://github.com/Kozea/WeasyPrint/pull/2773
• https://github.com/Kozea/WeasyPrint/releases/tag/v69.0
• https://github.com/Kozea/WeasyPrint/security/advisories/GHSA-jhhc-3hcp-qhm5