CVE-2026-14933
CVE-2026-14933 · Unblu Spark Cross-Site Scripting in Embedded Co-Browsing
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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.
CVSS 8.6 · High · EPSS 0.6%
- Published
- Updated
Affected products and versions
unblu spark
- Versions
- ≥ 8.35.2-hotfix.0, < 8.35.2: Not affected (semver)
- ≥ 8.37.2-hotfix.2, < 8.37.2: Not affected (semver)
- ≥ 8.38.2-hotfix.0, < 8.38.2: Not affected (semver)
- ≥ 7.0, ≤ 7.57.7: Affected (semver)
- ≥ 8.0, ≤ 8.39.2: Affected (semver)
- 8.39.3: Not affected
No fix published