Security readout for executives and security teams
Plain-English summary
CVE-2019-0963 is a SharePoint cross-site scripting issue. A crafted request to an affected server could cause script to run in a user's browser, potentially exposing or altering limited information within that user's SharePoint context.
Executive priority
Treat as a moderate legacy-platform risk. It is not presented as actively exploited in the provided evidence, but affected SharePoint deployments should be identified and remediated because XSS can support credential theft, session abuse, or content tampering.
Technical view
Microsoft describes improper sanitization of a specially crafted web request in Microsoft SharePoint Foundation 2013 Service Pack 1. CVSS 3.1 is 5.4: network exploitable, low complexity, low privileges required, user interaction required, changed scope, low confidentiality and integrity impact, no availability impact.
Likely exposure
Exposure is likely limited to organizations still running Microsoft SharePoint Foundation 2013 Service Pack 1. Risk is higher for externally reachable SharePoint sites or broad internal portals with many authenticated users.
Exploitation context
The provided bundle does not show CISA KEV listing or cited evidence of active exploitation. The CVSS vector indicates exploitation requires network access, low privileges, and user interaction, consistent with reflected or stored XSS-style impact.
Researcher notes
Source evidence names only SharePoint Foundation 2013 Service Pack 1. Do not broaden affected scope without vendor confirmation. The CVSS vector is useful for triage: PR:L and UI:R reduce urgency, while S:C confirms browser-context impact crosses trust boundaries.
Mitigation direction
- Review Microsoft guidance for CVE-2019-0963 and apply applicable security updates.
- Inventory SharePoint Foundation 2013 Service Pack 1 instances.
- Prioritize remediation for internet-facing or high-user-count SharePoint sites.
- Restrict access to affected SharePoint servers until vendor guidance is applied.
- Monitor SharePoint-related alerts for suspicious scripting or unusual request patterns.
Validation and detection
- Confirm whether SharePoint Foundation 2013 Service Pack 1 is deployed.
- Check patch status against Microsoft's CVE-2019-0963 advisory.
- Identify whether affected SharePoint servers are internet-accessible.
- Review logs for unusual authenticated requests around SharePoint pages.
- Verify compensating access controls are documented for unpatched systems.
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-2019-0963 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
- 5.4 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/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:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N2.32.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5.4MediumVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0963CVE 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.
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.