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.
Advisories

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Fixes

Solution

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Workaround

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History

Sat, 17 Oct 2026 01:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 13 Oct 2026 20:30:00 +0000

Type Values Removed Values Added
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.
Title Omnispace Agora Project < 26.10.0 Stored XSS via Messenger Iframe
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 6.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N'}

cvssV4_0

{'score': 5.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-17T00:48:17.840Z

Reserved: 2026-07-15T21:18:20.186Z

Link: CVE-2026-63169

cve-icon Vulnrichment

Updated: 2026-10-17T00:48:14.013Z

cve-icon NVD

Status : Deferred

Published: 2026-10-13T21:17:40.893

Modified: 2026-10-17T02:17:20.390

Link: CVE-2026-63169

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-16T04:45:14Z

Weaknesses