CVE-2026-69234: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Esri Portal for ArcGIS
CVE-2026-69234 is a reflected cross-site scripting (XSS) vulnerability in Esri Portal for ArcGIS versions 11.5 and prior. It allows a remote, unauthenticated attacker to craft a malicious link that, when clicked by a victim, could execute arbitrary JavaScript in the victim's browser. The vulnerability affects versions including 11.1, 11.3, and 11.5. Users are advised to patch or upgrade to the latest long-term support release. Additionally, users of ArcGIS Web App Builder developer edition should migrate to ArcGIS Experience Builder as the former is unsupported for this CVE. The CVSS score is 6.1, indicating medium severity.
AI Analysis
Technical Summary
This vulnerability is a reflected cross-site scripting (CWE-79) issue in Esri Portal for ArcGIS, affecting versions 11.5 and earlier. An attacker can create a crafted URL that executes arbitrary JavaScript code in the context of the victim's browser upon clicking the link. This could lead to limited confidentiality and integrity impact but no availability impact. The vulnerability is present in versions including 11.1, 11.3, and 11.5. No official patch or remediation level is stated in the vendor advisory or CVE data. Users are encouraged to upgrade to the latest long-term support release and migrate from unsupported components like ArcGIS Web App Builder developer edition.
Potential Impact
Successful exploitation allows execution of arbitrary JavaScript in the victim's browser, potentially leading to information disclosure or manipulation of web content within the affected Portal for ArcGIS environment. The CVSS vector indicates network attack vector, low attack complexity, no privileges required, user interaction required, scope changed, and low confidentiality and integrity impact with no availability impact.
Mitigation Recommendations
No official patch or remediation level is currently confirmed. Users working with ArcGIS Enterprise versions 11.1, 11.3, and 11.5 are encouraged to upgrade to the latest long-term support release. Users of ArcGIS Web App Builder developer edition should migrate to ArcGIS Experience Builder, as the former is unsupported for this vulnerability. Monitor the vendor advisory for updates on official patches or fixes.
CVE-2026-69234: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Esri Portal for ArcGIS
Description
CVE-2026-69234 is a reflected cross-site scripting (XSS) vulnerability in Esri Portal for ArcGIS versions 11.5 and prior. It allows a remote, unauthenticated attacker to craft a malicious link that, when clicked by a victim, could execute arbitrary JavaScript in the victim's browser. The vulnerability affects versions including 11.1, 11.3, and 11.5. Users are advised to patch or upgrade to the latest long-term support release. Additionally, users of ArcGIS Web App Builder developer edition should migrate to ArcGIS Experience Builder as the former is unsupported for this CVE. The CVSS score is 6.1, indicating medium severity.
CVSS v3.1
Score 6.1medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability is a reflected cross-site scripting (CWE-79) issue in Esri Portal for ArcGIS, affecting versions 11.5 and earlier. An attacker can create a crafted URL that executes arbitrary JavaScript code in the context of the victim's browser upon clicking the link. This could lead to limited confidentiality and integrity impact but no availability impact. The vulnerability is present in versions including 11.1, 11.3, and 11.5. No official patch or remediation level is stated in the vendor advisory or CVE data. Users are encouraged to upgrade to the latest long-term support release and migrate from unsupported components like ArcGIS Web App Builder developer edition.
Potential Impact
Successful exploitation allows execution of arbitrary JavaScript in the victim's browser, potentially leading to information disclosure or manipulation of web content within the affected Portal for ArcGIS environment. The CVSS vector indicates network attack vector, low attack complexity, no privileges required, user interaction required, scope changed, and low confidentiality and integrity impact with no availability impact.
Mitigation Recommendations
No official patch or remediation level is currently confirmed. Users working with ArcGIS Enterprise versions 11.1, 11.3, and 11.5 are encouraged to upgrade to the latest long-term support release. Users of ArcGIS Web App Builder developer edition should migrate to ArcGIS Experience Builder, as the former is unsupported for this vulnerability. Monitor the vendor advisory for updates on official patches or fixes.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Esri
- Date Reserved
- 2026-08-03T19:22:05.876Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a88be1bacd9273b49bcc6c1
Added to database: 08/21/2026, 21:07:39 UTC
Last enriched: 08/21/2026, 21:24:04 UTC
Last updated: 08/22/2026, 00:30:10 UTC
Views: 5
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