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CVE Record

CVE-2022-32226: An improper access control vulnerability exists in Rocket.Chat <v5, <v4.8.2 and <v4.7.5 due to input data i...

An improper access control vulnerability exists in Rocket.Chat <v5, <v4.8.2 and <v4.7.5 due to input data in the getUsersOfRoom Meteor server method is not type validated, so that MongoDB query operator objects are accepted by the server, so that instead of a matching rid String a$regex query can be executed, bypassing the room access permission check for every but the first matching room.

MediumCVSS 4.3Not KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

Authenticated Rocket.Chat users may have been able to see user lists for rooms they should not access. This is a confidentiality issue, not a takeover or service outage issue in the provided sources.

Executive priority

Treat as a medium-priority confidentiality fix. It can expose room membership information to authenticated users, so prioritize organizations using Rocket.Chat for sensitive internal or customer communications.

Technical view

The getUsersOfRoom Meteor server method did not type validate input. MongoDB query operator objects could be accepted instead of a room ID string, bypassing room access checks for matching rooms after the first match.

Likely exposure

Exposure is limited to Rocket.Chat deployments running affected versions before 4.7.5, 4.8.2, or 5.0.0. The CVSS vector requires low privileges, network access, and no user interaction.

Exploitation context

The source bundle does not show CISA KEV listing or active exploitation evidence. Public HackerOne reporting is referenced, but the provided data does not establish exploitation in the wild.

Researcher notes

Evidence points to improper access control caused by missing type validation in a Meteor method. The provided sources name fixed versions but do not include exploit-in-the-wild evidence or detailed vendor mitigation beyond upgrading.

Mitigation direction

  • Upgrade Rocket.Chat to 4.7.5, 4.8.2, 5.0.0, or a later supported release.
  • Check Rocket.Chat guidance for any branch-specific remediation notes.
  • Prioritize externally reachable or broadly accessible Rocket.Chat workspaces.
  • Limit access to trusted authenticated users until upgraded, where operationally feasible.

Validation and detection

  • Inventory all Rocket.Chat deployments and record exact server versions.
  • Confirm no production instance is below the fixed version for its branch.
  • Review access logs for unusual getUsersOfRoom activity, without attempting reproduction.
  • Confirm post-upgrade tests cover room membership authorization boundaries.
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-284: Authorization and privilege behavior lookup

Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. 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-2022-32226 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
4.3 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/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
4.3CVSS 3.1MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N2.81.4Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

4.3Medium
CVSS 3.1 vector shape for CVE-2022-32226Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/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 4.7.5, 4.8.2 and 5.0.0Listed
Weakness

CWE details

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

CWE-284 · source CWE mapping

Improper Access Control

Improper Access Control represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.