Security readout for executives and security teams
Plain-English summary
This vulnerability lets a highly privileged McAfee ePO DLP administrator place script into a DLP alert configuration field. That script can run on an end user machine when the user triggers a DLP policy. Business urgency is moderate because exploitation requires trusted administrative access, but successful abuse could expose sensitive data.
Executive priority
Treat this as a moderate-priority privileged-admin risk. Prioritize remediation where DLP administrators are numerous, outsourced, or not tightly monitored, because the flaw can turn DLP policy activity into a data exposure path.
Technical view
CVE-2021-31832 is a CWE-79 cross-site scripting flaw in the ePO administrator extension for McAfee Data Loss Prevention Endpoint for Windows before 11.6.200. Input in the alert configuration text field is not properly neutralized, allowing JavaScript execution when a DLP policy is triggered. CVSS 3.1 is 5.2 with high privileges required.
Likely exposure
Exposure is limited to organizations running McAfee DLP Endpoint for Windows versions before 11.6.200 with the affected ePO administrator extension. The attacker role described is a remote ePO DLP administrator, so risk is concentrated around privileged admin accounts and delegated DLP administration.
Exploitation context
The source bundle does not show CISA KEV listing or cited evidence of active exploitation. The described path requires high privileges in ePO and execution occurs only when an end user triggers a DLP policy on their machine.
Researcher notes
The available evidence identifies the vulnerable component, version boundary, privilege requirement, trigger condition, and CVSS vector. It does not provide public exploit status, detailed fixed-build notes, or broader product impact beyond McAfee DLP Endpoint for Windows before 11.6.200.
Mitigation direction
- Review McAfee advisory SB10360 and apply the vendor-recommended remediation.
- Upgrade affected McAfee DLP Endpoint for Windows deployments to 11.6.200 or later.
- Restrict ePO DLP administrator privileges to trusted, necessary personnel only.
- Audit DLP alert configuration changes for unauthorized or suspicious script content.
Validation and detection
- Inventory McAfee DLP Endpoint for Windows and ePO DLP extension versions.
- Confirm no affected deployment remains below version 11.6.200.
- Review ePO DLP administrator assignments and recent privilege changes.
- Inspect alert configuration text fields for unexpected JavaScript-like content.
- Check change logs for alert configuration edits by DLP administrators.
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-79: User-session and phishing behavior lookup
Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. 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-2021-31832 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
- 5.2 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:L/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:A/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:N0.94.2Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5.2MediumVector: CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://kc.mcafee.com/corporate/index?page=content&id=SB10360CVE reference · x_refsource_CONFIRM
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.
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.