Security readout for executives and security teams
Plain-English summary
CVE-2020-7309 is a low-severity cross-site scripting flaw in the McAfee Application Control ePO extension. The source says an administrator could place crafted script or HTML in the policy discovery section. Business urgency is limited because high privileges and local access are required, but affected security management consoles should still be updated.
Executive priority
Handle through normal patch governance, not emergency response, unless the ePO console is broadly administered or admin credentials are suspected compromised. Prioritize verification during the next security platform maintenance window.
Technical view
The flaw is CWE-79 in the ePO extension for McAfee Application Control / Application and Change Control before 8.3.1, per the CVE description. CVSS 3.1 is 3.9 with local attack vector, high complexity, high privileges, no user interaction, unchanged scope, and low confidentiality, integrity, and availability impact.
Likely exposure
Exposure is limited to organizations running the McAfee Application Control ePO extension in versions covered by the advisory, especially deployments before 8.3.1. The supplied bundle does not identify internet exposure or unauthenticated reachability.
Exploitation context
The bundle does not show CISA KEV listing or public active exploitation. Exploitation requires an administrator-level actor and crafted input in the policy discovery section, so this is more relevant to insider misuse, compromised admin accounts, or console hardening.
Researcher notes
The source bundle names XSS in the policy discovery section but does not provide exploit details, patch notes, or advisory text. The affected version metadata is sparse, so confirm exact vulnerable and fixed builds against McAfee SB10324.
Mitigation direction
- Verify the installed McAfee Application Control ePO extension version.
- Upgrade affected deployments to 8.3.1 or vendor-recommended later guidance.
- Restrict ePO administrator access to trusted personnel only.
- Review McAfee advisory SB10324 before change implementation.
- Monitor policy discovery entries for unexpected script or HTML content.
Validation and detection
- Inventory ePO extensions and confirm MACC version status.
- Check whether policy discovery functionality is enabled and used.
- Review ePO admin accounts for excessive or stale privileges.
- Confirm upgrade status against McAfee advisory SB10324.
- Review relevant ePO logs for unusual policy discovery changes.
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-2020-7309 mapping review
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Open ATT&CK lookup- Severity
- Low
- CVSS
- 3.9 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L
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:L/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L0.53.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
3.9LowVector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L
Source materials
- CVE List V5 sourceCVE List V5
- https://kc.mcafee.com/corporate/index?page=content&id=SB10324CVE 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.