Live › vulnerability › CVE-2026-14933
Go to dashboardUnblu Spark co-browsing: a visitor can alter the co-browsed page (the selected option of a dropdown is rendered as HTML in the agent's browser) and run JavaScript as the agent in Agent Desk or Single Conversation Desk. Needs an agent to join the visitor's embedded co-browsing session. Mobile co-apping not affected. Unblu Cloud already fixed.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-23 21:57 UTC. All times on this page are UTC.
| Product |
|---|
| Ecosystem |
|---|
| Affected |
|---|
| Fixed in |
|---|
| Unblu Spark | vendor | >= 8.0, <= 8.39.2 (except 8.35.2-hotfix.0, 8.37.2-hotfix.2, 8.38.2-hotfix.0 and later hotfixes) | 8.35.2-hotfix.0, 8.37.2-hotfix.2, 8.38.2-hotfix.0, 8.39.3 |
| Unblu Spark v7 | vendor | >= 7.0, <= 7.57.7 | 7.57.9 |
7.57.7, 8.x up to 8.39.2 unless on a fixed hotfix (8.35.2-hotfix.0, 8.37.2-hotfix.2, 8.38.2-hotfix.0 or later)8.39.3 or later, 7.57.9 or later, or the hotfix of your line (8.35.2-hotfix.0, 8.37.2-hotfix.2, 8.38.2-hotfix.0)Each row is the first time that source carried this signal. The analyst’s rows are its own findings.
Cross-site scripting in the embedded co-browsing feature in Unblu inc. Unblu Spark 7.0 through 7.57.7 and 8.0 through 8.39.2, on on-premises and cloud deployments, allows an unauthenticated remote attacker in the visitor role to execute arbitrary JavaScript in the browser of an agent taking part in the attacker's co-browsing session, via content of the co-browsed page that the agent's browser renders as HTML.
The JavaScript runs in the context and under the identity of the agent's session in the Agent Desk or the Single Conversation Desk.
Exploitation requires an agent to join an embedded co-browsing session with the attacker. Mobile co-apping isn't affected.
This page as .md · .json · in your agent: get_signal("CVE-2026-14933")
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