{"id":"CVE-2026-29052","summary":"HumHub Calendar Module: Stored XSS in Event Types","details":"The Calendar module for HumHub enables users to create one-time or recurring events, manage attendee invitations, and efficiently track all scheduled activities. Prior to version 1.8.11, a Stored Cross-Site Scripting (XSS) vulnerability in the Event Types of the HumHub Calendar module impacts users viewing events created by an administrative account. This issue has been patched in version 1.8.11.","aliases":["GHSA-gqj3-pmp2-mrx8"],"modified":"2026-04-10T05:42:26.036438Z","published":"2026-03-05T05:48:10.557Z","database_specific":{"cwe_ids":["CWE-79"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/29xxx/CVE-2026-29052.json","cna_assigner":"GitHub_M"},"references":[{"type":"WEB","url":"https://github.com/humhub/calendar/releases/tag/v1.8.11"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/29xxx/CVE-2026-29052.json"},{"type":"ADVISORY","url":"https://github.com/humhub/calendar/security/advisories/GHSA-gqj3-pmp2-mrx8"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-29052"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/humhub/calendar","events":[{"introduced":"0"},{"fixed":"6ed0e629fb5538dd5095603a9996530edfa23d83"}]}],"versions":["v0.7.4","v0.7.5","v1.0","v1.0.1","v1.0.10","v1.0.12","v1.0.13","v1.0.2","v1.0.3","v1.0.5","v1.0.6","v1.0.7","v1.0.8","v1.0.9","v1.1.10","v1.1.11","v1.1.2","v1.1.4","v1.1.9","v1.1.9.2","v1.2.0","v1.2.1","v1.2.2","v1.2.3","v1.2.4","v1.2.5","v1.4.0","v1.4.0-1","v1.5.0","v1.5.1","v1.5.10","v1.5.11","v1.5.12","v1.5.2","v1.5.3","v1.5.4","v1.5.5","v1.5.6","v1.5.7","v1.5.8","v1.5.9","v1.6.0","v1.6.1","v1.6.2","v1.6.3","v1.7.0","v1.7.1","v1.7.10","v1.7.11","v1.7.12","v1.7.13","v1.7.14","v1.7.2","v1.7.3","v1.7.4","v1.7.5","v1.7.6","v1.7.7","v1.7.8","v1.7.9","v1.8.0","v1.8.1","v1.8.10","v1.8.2","v1.8.3","v1.8.4","v1.8.5","v1.8.6","v1.8.7","v1.8.8","v1.8.9"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-29052.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N"}]}