Security readout for executives and security teams
Plain-English summary
This is a stored cross-site scripting issue in Esri ArcGIS Enterprise Sites 10.9 and below. A high-privileged authenticated user could prepare a malicious link that runs JavaScript in another user's browser after interaction, risking session data, trusted content, and application availability.
Executive priority
Treat this as a high-priority patching and privilege-review item for exposed ArcGIS Enterprise Sites environments. It is not reported as actively exploited here, but successful abuse could affect sensitive sessions, trusted content, and availability.
Technical view
CVE-2023-25837 is CWE-79 stored XSS in Portal for ArcGIS Enterprise Sites site builder. The CVSS 3.1 score is 8.4 with network access, low complexity, high privileges required, user interaction required, and changed scope. Reported impacts are high for confidentiality, integrity, and availability.
Likely exposure
Exposure is most likely where ArcGIS Enterprise Sites 10.9 or below is deployed and high-privileged authenticated users can access site builder functionality. The bundle's affected metadata is limited and partly broad, so confirm exact product/version exposure against Esri guidance.
Exploitation context
The source bundle does not show CISA KEV listing or active exploitation evidence. Exploitation requires a high-privileged authenticated attacker and a victim clicking a crafted link, which lowers likelihood but leaves serious impact if privileged accounts or administrators are targeted.
Researcher notes
Do not assume unauthenticated exposure. The key conditions are high-privileged authentication, user interaction, and ArcGIS Enterprise Sites 10.9 or below. The vendor reference indicates a security patch is available, but the provided bundle does not include detailed workaround text.
Mitigation direction
- Apply the Esri Portal for ArcGIS Enterprise Sites security patch referenced by Esri.
- Review Esri's advisory for exact affected releases and installation prerequisites.
- Restrict high-privileged site builder access to trusted administrators.
- Harden administrator sessions with MFA and least-privilege role assignments.
- Monitor Esri advisories for revised affected-version or workaround guidance.
Validation and detection
- Inventory ArcGIS Enterprise Sites deployments and record their exact versions.
- Confirm whether any deployment is version 10.9 or below.
- Verify the Esri security patch is installed on affected systems.
- Review privileged site builder access for unnecessary accounts.
- Check logs for suspicious privileged content changes or unusual administrator session activity.
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-2023-25837 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
- 8.4 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H
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:H/UI:R/S:C/C:H/I:H/A:H1.76Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
8.4HighVector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H
Source materials
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.