Security readout for executives and security teams
Plain-English summary
CVE-2020-0925 is a Microsoft SharePoint cross-site scripting issue. A low-privileged attacker could send a crafted request that SharePoint fails to sanitize, potentially causing script execution in a user's browser if interaction occurs. Business impact is mainly data exposure or unauthorized actions within affected SharePoint sessions.
Executive priority
Treat this as a moderate-priority SharePoint hygiene issue. It is not cited as actively exploited in the bundle, but affected SharePoint systems often hold sensitive business data and should be patched through normal vulnerability management timelines.
Technical view
The vulnerability is CWE-79 in Microsoft SharePoint Server sanitization of specially crafted web requests. CVSS 3.1 is 5.4 with network access, low complexity, low privileges required, user interaction required, changed scope, and low confidentiality and integrity impact.
Likely exposure
Exposure is limited to organizations running the listed on-premises SharePoint products: SharePoint Foundation 2010 SP2, Foundation 2013 SP1, SharePoint Enterprise Server 2016, or SharePoint Server 2019.
Exploitation context
The source bundle does not show CISA KEV listing or cited evidence of active exploitation. The CVSS vector indicates exploitation requires some privilege and user interaction, reducing urgency compared with unauthenticated remote code execution.
Researcher notes
Do not conflate this with adjacent 2020 SharePoint XSS CVEs; the record states this CVE is unique from several related IDs. Evidence provided does not include exploit details, patch KBs, or affected build ranges beyond product versions.
Mitigation direction
- Check Microsoft MSRC guidance for affected builds and security updates.
- Patch or upgrade affected on-premises SharePoint deployments per Microsoft guidance.
- Prioritize externally accessible or broadly used SharePoint farms.
- Restrict access to SharePoint where business use allows.
- Review compensating controls for script injection and suspicious requests.
Validation and detection
- Inventory SharePoint product versions across all farms.
- Compare installed build levels against Microsoft MSRC guidance.
- Confirm affected servers are patched or have documented mitigation.
- Review SharePoint and web logs for suspicious crafted requests.
- Verify no unsupported affected SharePoint versions remain exposed.
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-2020-0925 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-2020-0925CVE 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.