CVE-2022-35249Public exploitNetwork attack vector

Authenticated message disclosure via missing room authorization

Published Sep 23, 2022 · Updated May 22, 2025

Information disclosure in Rocket.Chat before 5.0 allows remote authenticated users to read messages from rooms they cannot access. The getUserMentionsByChannel Meteor server method queried mentions for a supplied room without first verifying that the caller could access that room. Any ordinary authenticated account could retrieve mentioned messages from private channels or direct-message rooms outside its membership.

CVSS severity4.3
Medium
EPSS probability0.68%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in Rocket.Chat before 5.0 allows remote authenticated users to read messages from rooms they cannot access. The getUserMentionsByChannel Meteor server method queried mentions for a supplied room without first verifying that the caller could access that room. Any ordinary authenticated account could retrieve mentioned messages from private channels or direct-message rooms outside its membership.

The record

CVE
CVE-2022-35249
Published
Sep 23, 2022
Updated
May 22, 2025
Vendor
Rocket.Chat Technologies Corp.
Product
Rocket.Chat
Classifications
CWE-862, CWE-200, T1213.005
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 23, 2022CVE publishedPublication date reported by the CVE source.
  2. May 22, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=Fixed in version 5.0>

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Rocket.Chat Technologies Corp. · Rocket.Chatversion=Fixed in version 5.0>

Published CVSS scores

4.3CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
4.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-862Missing Authorization
CWE-200Exposure of Sensitive Information to an Unauthorized Actor
T1213.005Data from Information Repositories: Messaging Applications

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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