# CVE-2026-63156: Omnispace Agora Project reflected XSS in visioUrl parameter

Source: https://junglewise.ai/threats/cve-2026-63156-omnispace-agora-project-before-26-10-0-contains-a-reflected-cross  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-13. Updated: 2026-10-16  
License: CC BY 4.0 with a link back

CVE-2026-63156 · Severity: medium · CVSS 6.1 · Published 2026-10-13

Omnispace Agora Project is a collaborative workspace platform that handles file sharing, messaging, and video conferencing. The application contains a reflected cross-site scripting (XSS) vulnerability in the visioUrl parameter that allows unauthenticated attackers to inject malicious code and execute arbitrary JavaScript in users' browsers without authentication. An attacker could craft a malicious link to steal credentials, sessions, or sensitive data from victims who click it.

Technologies: [Omnispace Agora Project](https://junglewise.ai/threats/technologies/agora-project). Vendors: [Omnispace](https://junglewise.ai/threats/vendors/omnispace).

## Quick answers

**Is CVE-2026-63156 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-63156 being exploited in the wild.

**How severe is CVE-2026-63156?** Medium severity, with a CVSS score of 6.1, published 13 October 2026.

**Which products and versions are affected?** Omnispace Agora Project before 26.10.0.

**Is there a fix for CVE-2026-63156?** Yes: fixed in 26.10.0. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-63156 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-63156?** Check whether you run Omnispace Agora Project at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- Fixed in 26.10.0

## Technical details

The vulnerability is a reflected XSS in the visioUrl parameter caused by improper input filtering in app/Common/Req.php. The parameter was URL-decoded after filtering rather than being routed through the URL-sanitizing branch, allowing attribute breakout payloads to bypass sanitization. An unauthenticated attacker can craft a malicious URL containing JavaScript-executing HTML attributes that execute in the victim's browser before authentication is required.

## Affected products

- Omnispace Agora Project before 26.10.0

## Timeline

- 2026-10-13: advisory

## References

- [https://github.com/xech/agora-project/releases/tag/26.10](https://github.com/xech/agora-project/releases/tag/26.10)
- [https://www.agora-project.net/](https://www.agora-project.net/)

## Related threats

- [Omnispace Agora Project stored cross-site scripting in forum](https://junglewise.ai/threats/cve-2026-63171-omnispace-agora-project-before-26-10-0-contains-a-stored-cross)
- [Omnispace Agora Project stored cross-site scripting in messenger](https://junglewise.ai/threats/cve-2026-63169-omnispace-agora-project-before-26-10-0-contains-a-stored-cross)
- [Omnispace Agora Project stored cross-site scripting in LDAP import](https://junglewise.ai/threats/cve-2026-63168-omnispace-agora-project-before-26-10-0-contains-a-stored-cross)
- [Omnispace Agora Project stored cross-site scripting in Links module](https://junglewise.ai/threats/cve-2026-63157-omnispace-agora-project-before-26-10-0-contains-a-stored-cross)
- [Omnispace Agora Project broken access control in user assignment](https://junglewise.ai/threats/cve-2026-63174-omnispace-agora-project-before-26-10-0-contains-a-broken-access)