CVE-2023-25833Network attack vector

Arbitrary HTML rendering via crafted links

Published May 10, 2023 · Updated Apr 10, 2025

HTML injection in Esri Portal for ArcGIS 11.0 and earlier allows remote authenticated users to render arbitrary HTML via a crafted link. Esri has not disclosed the affected request parameter or the precise neutralization failure that permits the crafted HTML to render. Exploitation requires a victim to click the link; Esri reports no stateful change or customer-data rendering.

CVSS severity5.4
Medium
EPSS probability0.44%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

HTML injection in Esri Portal for ArcGIS 11.0 and earlier allows remote authenticated users to render arbitrary HTML via a crafted link. Esri has not disclosed the affected request parameter or the precise neutralization failure that permits the crafted HTML to render. Exploitation requires a victim to click the link; Esri reports no stateful change or customer-data rendering.

The record

CVE
CVE-2023-25833
Published
May 10, 2023
Updated
Apr 10, 2025
Vendor
Esri
Product
Portal for ArcGIS
Classifications
CWE-79, CWE-80, T1204.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 10, 2023CVE publishedPublication date reported by the CVE source.
  2. Apr 10, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=All <=11.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Esri · Portal for ArcGISversion=All <=11.0

Published CVSS scores

5.4Environmental Systems Research Institute, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-80Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
T1204.001User Execution: Malicious Link

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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