Omnispace Agora Project before 26.10.0 contains a stored cross-site scripting vulnerability that allows authenticated users to post messages containing attacker-controlled iframes through the messenger's HTMLPurifier SafeIframe branch. Attackers can craft a message with a malicious iframe that is stored and automatically rendered to other channel members, enabling zero-click drive-by downloads and framed JavaScript execution in recipients' browsers.
{
"cna_assigner": "VulnCheck",
"cwe_ids": [
"CWE-79"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63169.json",
"unresolved_ranges": [
{
"extracted_events": [
{
"fixed": "26.10.0"
}
],
"source": "AFFECTED_FIELD"
},
{
"extracted_events": [
{
"fixed": "26.10.0"
}
],
"source": "DESCRIPTION"
}
]
}