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CVE Record

CVE-2022-32220: An information disclosure vulnerability exists in Rocket.Chat <v5 due to the getUserMentionsByChannel meteo...

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.

MediumCVSS 6.5Not KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

Rocket.Chat versions before v5 could let an authenticated user see message content from private channels or direct messages they should not access. This is a confidentiality issue, not a system takeover. It matters most where Rocket.Chat carries sensitive internal, customer, legal, or incident-response discussions.

Executive priority

Treat this as a confidentiality-driven upgrade priority. It is not described as actively exploited, but it can expose private channels and direct messages to authenticated users, which can create business, legal, and incident-response risk in sensitive environments.

Technical view

CVE-2022-32220 is CWE-200 information disclosure in Rocket.Chat <v5. The getUserMentionsByChannel Meteor server method disclosed messages from private rooms and DMs without enforcing the user's room access permission. CVSS 3.1 is 6.5: network reachable, low complexity, low privileges required, no user interaction, high confidentiality impact.

Likely exposure

Organizations running Rocket.Chat before v5 are potentially exposed, especially internet-accessible or large internal deployments with many low-privilege users. The source bundle does not identify hosted-service exposure, specific distributions, or affected configuration prerequisites beyond version and authenticated access.

Exploitation context

The bundle does not show CISA KEV listing or cited evidence of active exploitation. The CVSS vector indicates exploitation requires network access and a valid low-privilege account, with no user interaction. Impact is limited to confidentiality in the provided sources.

Researcher notes

Evidence supports an authorization failure in a Meteor server method, fixed at the v5 line. The sources do not provide safe operational indicators, affected managed offerings, exploit prevalence, or configuration-specific mitigations. Avoid assuming impact beyond private channel and DM message disclosure.

Mitigation direction

  • Upgrade Rocket.Chat deployments before v5 to v5.0.0 or later per vendor guidance.
  • Inventory all self-hosted Rocket.Chat instances and confirm their exact versions.
  • Restrict account creation and access while upgrades are pending.
  • Review private channels and DMs for sensitive material that may need follow-up handling.
  • Monitor vendor and CVE sources for any additional advisories or backport details.

Validation and detection

  • Confirm each Rocket.Chat instance reports v5.0.0 or later.
  • Check asset inventory for forgotten internal, staging, or internet-facing Rocket.Chat hosts.
  • Review access logs for unusual private-room or mention-related activity if available.
  • Verify low-privilege users cannot retrieve content from rooms they cannot access.
  • Document whether sensitive discussions occurred before remediation.
Prepared
Confidence
high
Sources
3

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · medium confidence lookup

CWE-200: Information exposure and cloud metadata lookup

Information exposure and SSRF weaknesses can make discovery, cloud metadata, and credential material review relevant. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2022-32220 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Medium
CVSS
6.5 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
6.5CVSS 3.1MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N2.83.6Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

6.5Medium
CVSS 3.1 vector shape for CVE-2022-32220Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/aRocket.Chatfixed in 5.0.0>Listed
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-200 · source CWE mapping

Exposure of Sensitive Information to an Unauthorized Actor

Exposure of Sensitive Information to an Unauthorized Actor represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.