[@rocket.chat/livechat] Cross-site Scripting in @rocket.chat/livechat

A blind self XSS vulnerability exists in RocketChat LiveChat versions lower than 1.9 that could allow an attacker to trick a victim pasting malicious code in their chat instance.

References

• https://nvd.nist.gov/vuln/detail/CVE-2022-21830
• https://hackerone.com/reports/1091118
• https://github.com/RocketChat/Rocket.Chat.Livechat/pull/558
• https://github.com/RocketChat/Rocket.Chat.Livechat/releases/tag/v1.9.0
• https://github.com/advisories/GHSA-hf55-c445-2w97