Esri Portal for ArcGIS <11.4 Unvalidated Redirect Enables Phishing
CVE-2025-57879 Published on September 29, 2025
BUG-000171009 - URL manipulation vulnerability in Portal for ArcGIS.
There is an unvalidated redirect vulnerability in Esri Portal for ArcGIS 11.4 and below that may allow a remote, unauthenticated attacker to craft a URL that could redirect a victim to an arbitrary website, simplifying phishing attacks.
Vulnerability Analysis
CVE-2025-57879 can be exploited with network access, requires user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a small impact on confidentiality and integrity, and no impact on availability.
Weakness Type
What is an Open Redirect Vulnerability?
A web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a Redirect. This simplifies phishing attacks. An http parameter may contain a URL value and could cause the web application to redirect the request to the specified URL. By modifying the URL value to a malicious site, an attacker may successfully launch a phishing scam and steal user credentials. Because the server name in the modified link is identical to the original site, phishing attempts have a more trustworthy appearance.
CVE-2025-57879 has been classified to as an Open Redirect vulnerability or weakness.
Products Associated with CVE-2025-57879
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Affected Versions
Esri Portal for ArcGIS:- Version 10.9.1, <= 11.4 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.