VYPR
← All advisories
Medium severity4.3OSV Advisory· Published May 11, 2023· Updated Jun 17, 2026

CVE-2023-28357

CVE-2023-28357

Description

A vulnerability has been identified in Rocket.Chat, where the ACL checks in the Slash Command /mute occur after checking whether a user is a member of a given channel, leaking private channel members to unauthorized users. This allows authenticated users to enumerate whether a username is a member of a channel that they do not have access to.

Affected products

3
  • RocketChat/Rocket.chatOSV3 versions
    0.10.0, 0.10.1, 0.10.2, …+ 2 more
    • (no CPE)range: 0.10.0, 0.10.1, 0.10.2, …
    • cpe:2.3:a:rocket.chat:rocket.chat:*:*:*:*:*:*:*:*range: <6.0.0
    • (no CPE)

Patches

Vulnerability mechanics

References

1

News mentions

0

No linked articles in our index yet.