CVE-2026-63169 Details
Description
Omnispace Agora Project before 26.10.0 contains a stored cross-site scripting vulnerability that allows authenticated users to post messages containing attacker-controlled iframes through the messenger's HTMLPurifier SafeIframe branch. Attackers can craft a message with a malicious iframe that is stored and automatically rendered to other channel members, enabling zero-click drive-by downloads and framed JavaScript execution in recipients' browsers.
A stored cross-site scripting vulnerability has been identified in Omnispace Agora Project versions prior to 26.10.0. This vulnerability allows authenticated users to send messages containing attacker-controlled iframes, which are processed by the messenger's HTMLPurifier SafeIframe branch. The crafted message is stored and automatically displayed to other channel members, potentially leading to zero-click drive-by downloads and execution of framed JavaScript in the browsers of the recipients.
Users can update to Omnispace Agora Project version 26.10.0 or later, where this vulnerability has been fixed.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 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 17, 2026References to Advisories, Solutions, and Tools
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| 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-stored-xss-via-messenger-iframe | [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 17, 2026 | CVE Modified | CISA-ADP |
| Oct 13, 2026 | New CVE Received | [email protected] |
Volerion