CVE-2026-50095: BUG-000187165 - ArcGIS Server has a security vulnerability.
Vulnerability summary
CVE-2026-50095 is a medium (CVSS 6.1) Cross-site Scripting vulnerability in esri arcgis server.
Timeline
- 26-10-2026PublishedVulnerability first disclosed.
- 26-10-2026Last modifiedVulnerability information updated.
Description
There is a stored cross site scripting issue in Esri ArcGIS Server 11.1 and earlier on Windows and Linux that in some configurations allows a remote unauthenticated attacker to store files that contain malicious code that may execute in the context of a victim’s browser. A patch is provided for ArcGIS Server software in General Availability and Extended support status, which includes versions 12.1, 12.0, 11.5, 11.3, and 11.1. Other versions are in mature or retired status, which are not patch eligible. Users working with unlisted versions are advised to upgrade and apply the patch.
CVSS metrics
2 scores · 2 sources · 1 version- NVDNIST6.1MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS trend
No EPSS score has been published for this record yet.
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Esri1 product
- arcgis server≥ 11.1, < 12.1
1 vendor · 1 product