CVE Catalog

CVE-2026-63169

MediumCVSS 6.4
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.29%

20th percentile - higher than 20% of all known CVEs

Summary

Stored XSS vulnerability in Omnispace Agora Project before 26.10.0 allows authenticated users to post messages containing attacker-controlled iframes through the messenger's HTMLPurifier SafeIframe branch, enabling zero-click drive-by downloads and framed JavaScript execution in recipients' browsers.

Risk Assessment

Risk of zero-click drive-by downloads and malicious JavaScript execution in channel members' browsers, potentially leading to client compromise.

Recommendation

Upgrade Omnispace Agora Project to version 26.10.0 or later to eliminate the vulnerability.

Other vulnerabilities in Omnispace Agora Project

See all
Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS