{"id":"CVE-2026-63156","summary":"Omnispace Agora Project \u003c 26.10.0 Reflected XSS via visioUrl Parameter","details":"Omnispace Agora Project before 26.10.0 contains a reflected cross-site scripting vulnerability that allows unauthenticated attackers to inject malicious HTML attributes by manipulating the visioUrl parameter, which was not routed through the URL-sanitizing branch of the parameter filter and was urldecoded after filtering. Attackers can craft a malicious URL containing the visioUrl parameter with an attribute breakout payload to execute arbitrary JavaScript in the victim's browser pre-authentication, with the issue fixed in version 26.10.0 via changes to app/Common/Req.php.","modified":"2026-10-15T02:47:40.372030688Z","published":"2026-10-13T20:01:07.123Z","database_specific":{"cna_assigner":"VulnCheck","cwe_ids":["CWE-79"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63156.json","unresolved_ranges":[{"extracted_events":[{"fixed":"26.10.0"}],"source":"AFFECTED_FIELD"},{"source":"DESCRIPTION","extracted_events":[{"fixed":"26.10.0"}]}]},"references":[{"type":"WEB","url":"https://www.agora-project.net/"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63156.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-63156"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/omnispace-agora-project-reflected-xss-via-visiourl-parameter"},{"type":"FIX","url":"https://github.com/xech/agora-project/releases/tag/26.10"},{"type":"PACKAGE","url":"https://github.com/xech/agora-project"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/xech/agora-project","events":[{"introduced":"0"},{"fixed":"92320bc403031ee6c285cfcedd628496b7eb56cb"}],"database_specific":{"source":"REFERENCES"}}],"versions":["26.9","26.8","26.6","26.5","26.4","26.2","25.12","25.11","25.10","25.8","25.6.4","25.6.3","25.6.2","25.6.1","25.6.0","25.3.3","25.3.2","25.1.0","24.12.1","24.11.1","24.8.3","24.8.2","24.8.1","24.6.4","24.6.3","24.6.2","24.6.0","24.4.5","24.4.4","24.4.3","24.2.3","24.2.1","23.10.3","23.10.2","23.10.1","23.7.3","23.7.1","23.5.0","23.4.2","23.4.1","23.2.3","22.12.0","22.3.1","3.8.0","3.7.4.1","3.7.3.1","3.7.2.1","3.7.2","3.7.0","3.6.5","3.6.4","3.6.3"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-63156.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N"}]}