Omnispace Agora Project < 26.10.0 Stored XSS via Messenger Iframe
Impact
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.
Source excerpt · VulnCheckAffected packages
Affected products
Vendor version evidence. Product records are separate from automatic dependency matching.
Omnispace · Agora Project
Other versions: unaffected
| Version / range | Source status |
|---|---|
| 0 to before 26.10.0 | affected |
Original source description
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.