CVE-2026-69229: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Esri Portal for ArcGIS
CVE-2026-69229 is a medium severity HTML injection vulnerability in Esri Portal for ArcGIS versions 12.0 and prior. It allows a remote, authenticated attacker to inject arbitrary HTML into the Portal for ArcGIS Home application. The vulnerability affects versions including 11.1, 11.3, 11.5, and 12.0. Users are advised to upgrade to the latest long-term support release to mitigate this issue.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-69229) is classified as CWE-79, indicating improper neutralization of input during web page generation, commonly known as cross-site scripting (XSS). It affects Esri Portal for ArcGIS versions 12.0 and earlier, allowing authenticated remote attackers to insert arbitrary HTML content into the Portal for ArcGIS Home application. This can lead to limited confidentiality and integrity impacts as indicated by the CVSS vector (AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N). No official patch or remediation level has been published yet, and no known exploits are reported in the wild.
Potential Impact
The vulnerability allows an authenticated remote attacker to inject arbitrary HTML, potentially leading to limited confidentiality and integrity impacts within the Portal for ArcGIS Home application. There is no impact on availability. The CVSS score of 5.4 reflects a medium severity level with network attack vector, low attack complexity, and requiring privileges but no user interaction.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Users working with affected versions (11.1, 11.3, 11.5, 12.0) are encouraged to upgrade to the latest long-term support release as a preventive measure.
CVE-2026-69229: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Esri Portal for ArcGIS
Description
CVE-2026-69229 is a medium severity HTML injection vulnerability in Esri Portal for ArcGIS versions 12.0 and prior. It allows a remote, authenticated attacker to inject arbitrary HTML into the Portal for ArcGIS Home application. The vulnerability affects versions including 11.1, 11.3, 11.5, and 12.0. Users are advised to upgrade to the latest long-term support release to mitigate this issue.
CVSS v3.1
Score 5.4medium
Affected software
pkg:github/esri/portal-for-arcgisRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-69229) is classified as CWE-79, indicating improper neutralization of input during web page generation, commonly known as cross-site scripting (XSS). It affects Esri Portal for ArcGIS versions 12.0 and earlier, allowing authenticated remote attackers to insert arbitrary HTML content into the Portal for ArcGIS Home application. This can lead to limited confidentiality and integrity impacts as indicated by the CVSS vector (AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N). No official patch or remediation level has been published yet, and no known exploits are reported in the wild.
Potential Impact
The vulnerability allows an authenticated remote attacker to inject arbitrary HTML, potentially leading to limited confidentiality and integrity impacts within the Portal for ArcGIS Home application. There is no impact on availability. The CVSS score of 5.4 reflects a medium severity level with network attack vector, low attack complexity, and requiring privileges but no user interaction.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Users working with affected versions (11.1, 11.3, 11.5, 12.0) are encouraged to upgrade to the latest long-term support release as a preventive measure.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Esri
- Date Reserved
- 2026-08-03T19:22:01.732Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a88be1eacd9273b49bcc74b
Added to database: 08/21/2026, 21:07:42 UTC
Last enriched: 08/21/2026, 21:23:31 UTC
Last updated: 08/21/2026, 21:26:53 UTC
Views: 3
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