CVE-2026-84371

npm/sanitize-html CVE-2026-84371: medium 5.4

ApostropheCMS: Stored XSS via SVG SMIL URI-list scheme-policy bypass

Action: Upgrade sanitize-html to 2.17.7 or later.

npm i sanitize-html@2.17.7

Affected

Fixed versions

Sources

• osv: GHSA-g8qq-57p8-ggw5
• https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-g8qq-57p8-ggw5
• https://github.com/apostrophecms/apostrophe/pull/5552
• https://github.com/apostrophecms/apostrophe/commit/1135516a1a4a8f9638641c460488a43d8af20081
• https://github.com/apostrophecms/apostrophe/commit/38ff1106c8176b16c2da9872acd9b449adcbb949
• https://github.com/apostrophecms/apostrophe
• https://github.com/apostrophecms/apostrophe/blob/main/packages/sanitize-html/CHANGELOG.md

CVE-2026-84371 · published 2026-09-01T21:20:01Z · modified 2026-09-10T03:50:54.463184410Z · JSON