CVE-2026-63169 Omnispace Agora Project < 26.10.0 Stored XSS via Messenger Iframe
Authenticated attackers can inject malicious iframes into messenger messages, leading to stored XSS and potential account takeover for other users.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-63169?
CVE-2026-63169 is a medium-severity cross-site scripting vulnerability in Omnispace Agora Project, published on 13 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-79
Which versions are affected by CVE-2026-63169?
How do I fix CVE-2026-63169?
No fix has been published for CVE-2026-63169 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-63169 being exploited?
There is no known exploitation of CVE-2026-63169 in the wild and no public exploit code.
Sources
Also known as GHSA-qgfm-25pr-4ww7.