CVE-2026-63169

MEDIUM 6.4

Omnispace Agora Project < 26.10.0 Stored XSS via Messenger Iframe

CVSS Score

6.4

EPSS Score

0.0%

EPSS Percentile

0th

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.

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:L/UI:N/S:C/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

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-stored-xss-via-messenger-iframe

Credits

Geoffrey Robert of akailabs