CVE-2026-116538: falha de baixa gravidade em mganss HtmlSanitizer
HtmlSanitizer before 9.2.1039 XSS via SanitizeDom Body and HTML Attributes
Publicada em · Atualizada em
Aviso por e-mail quando ela entrar no KEV, ganhar PoC pública ou subir de nota.
8Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 2.3epss 0.3%
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.
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
Produtos afetados
mganss · HtmlSanitizerCVEs relacionadas — mganss HtmlSanitizer
No mesmo produto, das mais perigosas para as menos.
Referências
https://github.com/mganss/HtmlSanitizerhttps://github.com/mganss/HtmlSanitizer/blob/v9.2.995/src/HtmlSanitizer/HtmlSanitizer.cs#L456-L465https://github.com/mganss/HtmlSanitizer/blob/v9.2.995/src/HtmlSanitizer/HtmlSanitizer.cs#L555-L583https://github.com/mganss/HtmlSanitizer/commit/96afbc818e64de7571ea17954a05d523e819c56fhttps://github.com/mganss/HtmlSanitizer/commit/ab626e7a4f2893f7e9ec0a72779ae19c5ec439a7https://github.com/mganss/HtmlSanitizer/releases/tag/v10.0.1037-betahttps://github.com/mganss/HtmlSanitizer/releases/tag/v9.2.1039https://joshua.hu/htmlsanitizer-sanitizedom-body-html-attribute-bypasshttps://www.vulncheck.com/advisories/htmlsanitizer-before-9.2.1039-xss-via-sanitizedom-body-and-html-attributes