Security readout for executives and security teams
Plain-English summary
CVE-2020-1452 is a high-severity SharePoint flaw that can let an attacker run code on the SharePoint server if a crafted application package is uploaded. Successful exploitation could affect the SharePoint application pool and server farm account, making it a serious risk for organizations running affected SharePoint versions.
Executive priority
Treat this as a high-priority patching item for affected SharePoint farms, especially where package upload rights are broad or poorly monitored. No active exploitation is proven in the supplied sources, but successful exploitation could run code with sensitive SharePoint service context.
Technical view
Microsoft describes a remote code execution issue caused by SharePoint failing to properly check source markup in application packages. Exploitation requires upload of a specially crafted SharePoint application package. The fix corrects how SharePoint checks package source markup. CVSS is 8.6 under CVSS 3.1.
Likely exposure
Exposure is most likely in organizations running affected Microsoft SharePoint 2010, 2013, 2016, or 2019 products where application packages can be uploaded. The provided sources do not establish broader product impact beyond the listed SharePoint editions.
Exploitation context
The source bundle does not show CISA KEV listing or cited evidence of active exploitation. Microsoft states exploitation requires a crafted SharePoint application package upload. No public exploit status is confirmed by the provided sources.
Researcher notes
Key uncertainty is exploitability in specific deployments because the sources identify the required package upload condition but do not detail authentication, configuration, or detection indicators. Validate installed SharePoint build levels against Microsoft guidance and focus review on package upload paths and privileged service contexts.
Mitigation direction
- Apply Microsoft security updates that address CVE-2020-1452 on affected SharePoint servers.
- Check Microsoft guidance for version-specific update requirements and prerequisites.
- Restrict SharePoint application package upload capability to trusted administrators.
- Review SharePoint farm accounts and application pool permissions for least privilege.
- Prioritize unsupported or legacy SharePoint versions for upgrade planning.
Validation and detection
- Inventory SharePoint versions and editions across all farms.
- Confirm each affected server has the Microsoft update containing the CVE-2020-1452 fix.
- Review who can upload SharePoint application packages.
- Check SharePoint audit logs for unexpected application package uploads.
- Verify farm account and application pool account privilege levels.
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-2020-1452 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
- 8.6 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L/E:P/RL:O/RC:C
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:N/UI:N/S:U/C:L/I:H/A:L/E:P/RL:O/RC:C3.94.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
8.6HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L/E:P/RL:O/RC:C
Source materials
- CVE List V5 sourceCVE List V5
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1452CVE 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.