CVE-2026-63147
CVE-2026-63147
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.
Vulnerability class: XSS (Cross-Site Scripting)
Published .
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Weakness classification (CWE)
References
- github.com/xech/agora-project/releases/tag/26.10 (release-notes, patch)
- www.agora-project.net/ (product)
- www.vulncheck.com/advisories/omnispace-agora-project-stored-xss-via-uploaded-fi… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-63147?
- CVE-2026-63147 is a medium-severity vulnerability, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-10-13.
- How severe is CVE-2026-63147?
- Medium severity. CVSS v3 base score is 5.4 out of 10.