CVE-2026-63156

MEDIUM 6.1

Omnispace Agora Project < 26.10.0 Reflected XSS via visioUrl Parameter

CVSS Score

6.1

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-79
Vendor	omnispace
Product	agora project
Published	Oct 13, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Affected Versions

Omnispace / Agora Project

0 < 26.10.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/xech/agora-project/releases/tag/26.10 agora-project.net: https://www.agora-project.net/ vulncheck.com: https://www.vulncheck.com/advisories/omnispace-agora-project-reflected-xss-via-visiourl-parameter

Credits

Geoffrey Robert of akailabs