Security readout for executives and security teams
Plain-English summary
Rocket.Chat versions before the fixed v5 release could expose messages from private channels and direct messages to an authenticated user through a mention-related server method. The issue is confidentiality-only, but it can still undermine trust in private communications if sensitive discussions occurred there.
Executive priority
Prioritize remediation for Rocket.Chat environments used for confidential internal, executive, legal, HR, or incident-response discussions. The issue is not a takeover bug, but private-message exposure can create business, privacy, and trust consequences.
Technical view
The vulnerable getUserMentionsByChannel Meteor server method failed to enforce room access permissions before returning message data. CVSS 3.1 is 4.3: network reachable, low complexity, low privileges required, no user interaction, with low confidentiality impact and no integrity or availability impact.
Likely exposure
Organizations running Rocket.Chat before the fixed v5 release are the relevant exposure group, especially where many regular users have accounts. The source bundle does not identify hosted versus self-managed differences.
Exploitation context
The bundle does not show CISA KEV listing or active exploitation evidence. Exploitation requires an authenticated user account, is network-accessible, and targets disclosure of private channel or direct-message content rather than system takeover.
Researcher notes
Evidence is limited to the CVE metadata and HackerOne reference in the bundle. The affected range is described as Rocket.Chat before v5, with the bundle noting a fix in the v5 line. No exploit procedure, patch diff, or active exploitation source is provided.
Mitigation direction
- Upgrade Rocket.Chat to the vendor-fixed v5 release or later.
- Check Rocket.Chat vendor guidance before treating ambiguous versions as remediated.
- Limit account access to trusted users until affected instances are upgraded.
- Review sensitive private-room or direct-message content for potential disclosure impact.
Validation and detection
- Inventory all Rocket.Chat deployments and record exact versions.
- Flag any Rocket.Chat instance running before the fixed v5 release.
- Confirm permission checks with authorized regression testing after upgrade.
- Review available application logs for unusual mention-method activity, if logged.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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-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 lookupCVE-2022-35249 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- 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
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.
CVSS vector scores
1 official scoreWe 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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N2.81.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
4.3MediumVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://hackerone.com/reports/1410246CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
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.