Security readout for executives and security teams
Plain-English summary
This is a high-severity Oracle Site Hub flaw in Oracle E-Business Suite. A low-privileged user with HTTP network access could read or change critical Site Hub data. The main business risk is unauthorized disclosure, creation, deletion, or modification of business data managed through Site Hub.
Executive priority
Treat as a priority remediation item if Oracle Site Hub is deployed. The issue can affect critical data confidentiality and integrity, but supplied sources do not show active exploitation.
Technical view
CVE-2021-2270 affects Oracle Site Hub 12.1.1 through 12.1.3, component Sites. The CVSS 3.1 score is 8.1: network reachable, low complexity, low privileges, no user interaction, high confidentiality and integrity impact, no availability impact.
Likely exposure
Organizations running Oracle E-Business Suite with Oracle Site Hub versions 12.1.1 to 12.1.3 are in scope, especially where HTTP access is available to low-privileged users.
Exploitation context
The bundle does not cite active exploitation, and the CVE is not marked as CISA KEV. Exploitation is described as easy and HTTP-accessible, but requiring low privileges. No public exploit details are provided in the supplied sources.
Researcher notes
No CWE, exploit method, or product-specific patch identifier is provided in the bundle. Analysis should stay anchored to Oracle CPU guidance, version confirmation, privilege model review, and evidence of unauthorized Site Hub data access or changes.
Mitigation direction
- Review Oracle April 2021 Critical Patch Update guidance for this CVE.
- Apply the relevant Oracle E-Business Suite Site Hub vendor patches.
- Restrict HTTP access to Site Hub to trusted users and networks.
- Review low-privileged account access to Site Hub functionality.
- Monitor Site Hub data changes until remediation is confirmed.
Validation and detection
- Inventory Oracle E-Business Suite deployments for Site Hub usage.
- Confirm whether Site Hub versions are 12.1.1 through 12.1.3.
- Check applied Oracle CPU patch levels against April 2021 guidance.
- Review logs for unusual Site Hub data reads or modifications.
- Verify HTTP exposure is limited to expected trusted paths.
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.
CVE-2021-2270 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
- High
- CVSS
- 8.1 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/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:H/I:H/A:N2.85.2Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
8.1HighVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://www.oracle.com/security-alerts/cpuapr2021.htmlCVE 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.