{"id":"CVE-2026-18526","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-18526","summary":"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.","details":"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.","published":"2026-08-19T15:16:58.010","modified":"2026-08-19T15:16:58.010","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":{"url":"https://github.com/humhub/humhub/pull/8373","label":"humhub/humhub#8373"},"references":[{"type":"WEB","url":"https://fluidattacks.com/advisories/greeicy"},{"type":"WEB","url":"https://github.com/humhub/humhub"},{"type":"WEB","url":"https://github.com/humhub/humhub/pull/8373"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-08-19T15:16:58.010"}}