CVE-2025-57878Network attack vector

Phishing redirection via unvalidated destination URL

Published Sep 29, 2025 · Updated Sep 29, 2025

Open redirect in Esri Portal for ArcGIS 10.9.1 through 11.4 allows remote attackers to send victims to arbitrary websites. Portal for ArcGIS accepts an attacker-crafted destination in a URL and redirects the browser without validating the target; Esri has not identified the affected endpoint or parameter. No authentication is required, but a victim must open the crafted link; successful redirection can lend a trusted portal origin to phishing.

CVSS severity6.1
Medium
EPSS probability0.25%
Next 30 days · Sep 17, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Open redirect in Esri Portal for ArcGIS 10.9.1 through 11.4 allows remote attackers to send victims to arbitrary websites. Portal for ArcGIS accepts an attacker-crafted destination in a URL and redirects the browser without validating the target; Esri has not identified the affected endpoint or parameter. No authentication is required, but a victim must open the crafted link; successful redirection can lend a trusted portal origin to phishing.

The record

CVE
CVE-2025-57878
Published
Sep 29, 2025
Updated
Sep 29, 2025
Vendor
Esri
Product
Portal for ArcGIS
Classifications
CWE-601, CAPEC-109, T1566.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 29, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 29, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=10.9.1 <=11.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Esri · Portal for ArcGISversion=10.9.1 <=11.4

Published CVSS scores

6.1EsriCVSS:3.1/AV:N/AC:L/PR:N/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-601URL Redirection to Untrusted Site ('Open Redirect')
CAPEC-109Object Relational Mapping Injection
T1566.002Phishing: Spearphishing 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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo