CVE-2026-63148 Omnispace Agora Project < 26.10.0 Stored XSS via Poll-Response Attachment Filename
Authenticated attackers can inject malicious scripts via poll-response attachment filenames, leading to arbitrary code execution in victim browsers.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-63148?
CVE-2026-63148 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, and only if a user opens a file or follows a link.
Official description
Omnispace Agora Project before 26.10.0 contains a stored cross-site scripting vulnerability that allows authenticated attackers to inject HTML/script markup by uploading a poll-response attachment with a malicious filename that bypasses the paramFilter sanitization applied to $_FILES. Attackers can submit a crafted filename that is stored and later rendered in components such as the dashboard controller (CtrlDashboard), executing arbitrary script in the browsers of users who view the affected page.
Weakness: CWE-79
Which versions are affected by CVE-2026-63148?
How do I fix CVE-2026-63148?
No fix has been published for CVE-2026-63148 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-2026-63148 being exploited?
There is no known exploitation of CVE-2026-63148 in the wild and no public exploit code.
Sources
Also known as GHSA-4gw9-m5rw-6837.