Security readout for executives and security teams
Plain-English summary
CVE-2021-31769 affects MyQ Server in MyQ X Smart before 8.2. An unprivileged user may reach administrative session data and abuse an administrator-only file selection path to trigger operating system command execution through Task Scheduler. For organizations running this product, treat it as a serious server compromise risk.
Executive priority
Prioritize remediation if MyQ X Smart before 8.2 is present, especially on shared or remotely accessible servers. The issue can cross from low privilege to server command execution, which creates business risk beyond the print-management application itself.
Technical view
The CVE describes authorization and session-data exposure weaknesses: administrative session data is readable in `%PROGRAMFILES%\MyQ\PHP\Sessions`, and the “Select server file” feature does not require proper authorization. Combined with Task Scheduler command injection, this can lead to remote code execution by unprivileged users in MyQ X Smart before 8.2.
Likely exposure
Exposure is limited to environments running MyQ Server in MyQ X Smart before 8.2. The source bundle does not identify affected CPEs, deployment patterns, internet exposure, or whether authentication is required beyond “unprivileged users.”
Exploitation context
The CVE source describes a plausible remote code execution path, but the bundle does not show CISA KEV listing or confirmed active exploitation. A public gist is referenced, so defenders should assume technical details may be available publicly without asserting active exploitation.
Researcher notes
The bundle lacks CVSS, CWE mappings, precise affected CPEs, and vendor advisory text. Analysis is therefore based on the CVE description and referenced gist only. Do not infer additional affected MyQ products or active exploitation without separate evidence.
Mitigation direction
- Identify MyQ X Smart deployments and confirm whether any are before version 8.2.
- Upgrade affected systems to MyQ X Smart 8.2 or later per vendor guidance.
- Restrict network access to MyQ Server to trusted administrative networks.
- Review vendor guidance before changing MyQ filesystem permissions or session handling.
- Limit unprivileged MyQ accounts until affected systems are remediated.
Validation and detection
- Check installed MyQ X Smart and MyQ Server versions against the before-8.2 affected range.
- Review whether unprivileged accounts can access administrative file-selection functionality.
- Inspect MyQ task scheduler activity for unexpected jobs or commands.
- Review web root and MyQ directories for unexpected PHP files.
- Check server logs for suspicious unprivileged account activity around MyQ administration features.
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.
Execution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2021-31769 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
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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 and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://gist.github.com/bc0d3/6d55866a78f66569383241406e18794fCVE 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.