Rocket.Chat in versions before 8.8.0, 8.7.1, 8.6.2, 8.5.3, 8.4.6, 8.3.8, 8.2.8, 8.1.8, and 7.10.15 has a REST API endpoint POST /api/v1/livechat/visitor that accepts an unauthenticated, unsanitized name field for Livechat visitors. This name is stored raw and later rendered via dangerouslySetInnerHTML in the Omnichannel Queue side panel (InquireSidePanelItem.tsx), injecting a real, clickable HTML link - pointing to any attacker-controlled domain, with arbitrary social-engineering text - into the DOM of any agent viewing the queue.

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Rocket.Chat Rocket.Chat unaffected
Version Status Constraints
0 affected < 8.8.0
0 affected < 8.7.1
0 affected < 8.6.2
0 affected < 8.5.3
0 affected < 8.4.6
0 affected < 8.3.8
0 affected < 8.2.8
0 affected < 8.1.8
0 affected < 7.10.15

No data.

No data.

OpenCVE Enrichment is a feature of OpenCVE that uses AI to automatically link vendors and products to CVEs. Learn more on GitHub.

Vendors Products
Rocket.chat Subscribe
Rocket.chat Subscribe

Project Subscriptions

Vendors Products
Rocket.chat Subscribe
Rocket.chat Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/RocketChat/Rocket.Chat/pull/41595 cve-icon cve-icon
https://hackerone.com/reports/3872858 cve-icon cve-icon
History

Fri, 21 Aug 2026 04:45:00 +0000

Type Values Removed Values Added
Title Unauthenticated Visitor Name Injection Enables XSS in Rocket.Chat Livechat Queue
First Time appeared Rocket.chat
Rocket.chat rocket.chat
Vendors & Products Rocket.chat
Rocket.chat rocket.chat

Fri, 21 Aug 2026 03:30:00 +0000

Type Values Removed Values Added
Description Rocket.Chat in versions before 8.8.0, 8.7.1, 8.6.2, 8.5.3, 8.4.6, 8.3.8, 8.2.8, 8.1.8, and 7.10.15 has a REST API endpoint POST /api/v1/livechat/visitor that accepts an unauthenticated, unsanitized name field for Livechat visitors. This name is stored raw and later rendered via dangerouslySetInnerHTML in the Omnichannel Queue side panel (InquireSidePanelItem.tsx), injecting a real, clickable HTML link - pointing to any attacker-controlled domain, with arbitrary social-engineering text - into the DOM of any agent viewing the queue.
Weaknesses CWE-79
References

Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: hackerone

Published:

Updated: 2026-08-21T02:53:43.406Z

Reserved: 2026-07-22T15:00:06.103Z

Link: CVE-2026-65644

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-21T04:18:13.780

Modified: 2026-08-21T04:18:13.780

Link: CVE-2026-65644

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-21T04:30:09Z

Weaknesses