An information disclosure vulnerability exists in Rocket.Chat <v5 due to the getUserMentionsByChannel meteor server method discloses messag…

published 2022-09-23 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-53421

cvss: 6.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 1.0%; EPSS 1.0% chance of exploitation in 30 days, percentile 61%
public exploits: 0; none known

An information disclosure vulnerability exists in Rocket.Chat <v5 due to the getUserMentionsByChannel meteor server method discloses messages from private channels and direct messages regardless of the users access permission to the room.

Patch / fix

fixed in 1

rocket.chat rocket.chat 5.0

CISA SSVC

Exploitation: Proof of concept is public
Automatable: no
Technical impact: partial
Assessed: 17 mo ago (2025-05-22)

Exploit prediction

0.95% chance of exploitation in the next 30 days, higher than 61% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

hackerone.com https://hackerone.com/reports/1410246 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CISA ADP	3.1	6.5	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
NVD	3.1	6.5	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CNA	3.1	6.5	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Affected products

n/a Rocket.Chat

Classification

Weakness

CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
CWE-862 Missing Authorization

References

hackerone.com /reports/1410246
exploit, issue-tracking, mitigation, third-party-advisory

Sources

CVE List CVE-2022-32220
NVD CVE-2022-32220

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary