CVE-2026-18526

HumHub Community Edition 1.18.4 and 1.18.4-pl1 contain a stored Cross-Site Scripting XSS vulnerability in the oEmbed confirmation rendering workflow...

CVE-2026-18526

HumHub CE 1.18.4 and 1.18.4-pl1 have a stored XSS flaw in the oEmbed confirmation rendering workflow; the fix is tracked in GitHub PR #8373 (https://github.com/humhub/humhub/pull/8373). No exploitation evidence is provided in the documents.