CVE-2026-116538

MediumCVSS 4.7/10Last modified Oct 31, 2026

Description

HtmlSanitizer before 9.2.1039 and 10.0 prereleases before 10.0.1037-beta contains a cross-site scripting vulnerability because SanitizeDom(string) never sanitizes attributes on the html and body wrapper elements. Attackers can supply input with a second body or html tag carrying event handlers like onload, executing script when applications render serialized document or body outer HTML.

Metrics

CVSS 3.1 4.7/10CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N

Weakness enumeration

CWE-79

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

Vendor	Product	Versions
mganss	HtmlSanitizer	< 9.2.1039; >= 10.0.0-beta, < 10.0.1037-beta

References

Timeline

Published: Oct 26, 2026
Last modified: Oct 31, 2026
NVD status: Awaiting Analysis

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