CVE-2026-63156 Details
Description
Omnispace Agora Project before 26.10.0 contains a reflected cross-site scripting vulnerability that allows unauthenticated attackers to inject malicious HTML attributes by manipulating the visioUrl parameter, which was not routed through the URL-sanitizing branch of the parameter filter and was urldecoded after filtering. Attackers can craft a malicious URL containing the visioUrl parameter with an attribute breakout payload to execute arbitrary JavaScript in the victim's browser pre-authentication, with the issue fixed in version 26.10.0 via changes to app/Common/Req.php.
A reflected cross-site scripting vulnerability has been identified in Omnispace Agora Project versions prior to 26.10.0. This vulnerability allows unauthenticated attackers to inject malicious HTML attributes by manipulating the visioUrl parameter. The issue arises because the parameter was not properly sanitized before being decoded, enabling the injection of JavaScript that could be executed in the context of the user's browser, before authentication.
Users can upgrade to Omnispace Agora Project version 26.10.0 or later to address this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 13, 2026CISA-ADP
Assessed Oct 14, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/xech/agora-project/releases/tag/26.10 | [email protected] | Release NotesVendor |
| https://www.agora-project.net/ | [email protected] | Vendor |
| https://www.vulncheck.com/advisories/omnispace-agora-project-reflected-xss-via-visiourl-parameter | [email protected] | AdvisoryRemedy |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-79 | Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Omnispace Agora Project | < 26.10.0 (semver) |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Oct 14, 2026 | CVE Modified | CISA-ADP |
| Oct 13, 2026 | New CVE Received | [email protected] |