DOMPurify allows tampering by prototype pollution

TRUNG BÌNH 6.1CVE-2024-45801 · GHSA-mmhx-hmjr-r674 · Công bố 16/09/2024 · cập nhật 17/06/2026

Tóm tắt nhanh

CVE-2024-45801 là lỗ hổng mức TRUNG BÌNH (CVSS 6.1) ảnh hưởng dompurify (cure53), dompurify.
Xác suất bị khai thác trong 30 ngày tới (EPSS): 0.89%, cao hơn 59.5% các lỗ hổng khác.
Cách xử lý: cập nhật lên 3.1.3, 2.5.4 hoặc mới hơn.

Gói / sản phẩm	Phiên bản bị ảnh hưởng	Phiên bản đã vá
dompurify cure53	`≥ 3.0.0, < 3.1.3< 2.5.4`	`3.1.32.5.4`
dompurify npm	`≥ 3.0.0, < 3.1.3< 2.5.4`	`3.1.32.5.4`

Mô tả

It has been discovered that malicious HTML using special nesting techniques can bypass the depth checking added to DOMPurify in recent releases. It was also possible to use Prototype Pollution to weaken the depth check.

This renders dompurify unable to avoid XSS attack.

Fixed by https://github.com/cure53/DOMPurify/commit/1e520262bf4c66b5efda49e2316d6d1246ca7b21 (3.x branch) and https://github.com/cure53/DOMPurify/commit/26e1d69ca7f769f5c558619d644d90dd8bf26ebc (2.x branch).

Mô tả của NVD

DOMPurify is a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. It has been discovered that malicious HTML using special nesting techniques can bypass the depth checking added to DOMPurify in recent releases. It was also possible to use Prototype Pollution to weaken the depth check. This renders dompurify unable to avoid cross site scripting (XSS) attacks. This issue has been addressed in versions 2.5.4 and 3.1.3 of DOMPurify. All users are advised to upgrade. There are no known workarounds for this vulnerability.