CVE-2026-63147 Omnispace Agora Project < 26.10.0 Stored XSS via Uploaded File Name
Authenticated attackers can execute arbitrary scripts in other users' browsers by uploading files with malicious filenames in Omnispace Agora Project.
- 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-2026-63147?
CVE-2026-63147 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 users to inject malicious script by uploading a file with HTML/script markup embedded in its filename, which bypasses the paramFilter since uploaded-file names arrive through $_FILES rather than $_GET/$_POST. Attackers can upload a file with a crafted name such as an SVG onload payload to have the unsanitized filename stored and later rendered to other users, resulting in script execution in their browsers.
Weakness: CWE-79
Which versions are affected by CVE-2026-63147?
How do I fix CVE-2026-63147?
No fix has been published for CVE-2026-63147 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-2026-63147 being exploited?
There is no known exploitation of CVE-2026-63147 in the wild and no public exploit code.
Sources
Also known as GHSA-p4qp-qp77-4vr9.