CVE-2018-13878: Rocket.chat

Medium severity, CVSS 6.1. EPSS: 0.8% chance of exploitation in the next 30 days.

An XSS issue was discovered in packages/rocketchat-mentions/Mentions.js in Rocket.Chat before 0.65. The real name of a username is displayed unescaped when the user is mentioned (using the @ symbol) in a channel or private chat. Consequently, it is possible to exfiltrate the secret token of every user and also admins in the channel.

Affected products

• Rocket.chat Rocket.chat: before 0.65 (fixed in 0.65)

Published 2018-07-11. Last modified 2026-06-17.