Medium severity · published Aug 21, 2026
CVE-2026-69233
stored cross site scripting issue in Esri Portal for ArcGIS
5.5
CVSS
0.3%
EPSS
No
On KEV
Description
There is a stored cross site scripting issue in Esri Portal for ArcGIS versions 11.5 and prior that may allow a remote, administratively privileged attacker to inject malicious code that could potentially execute arbitrary in a victim’s browser. Users working with ArcGIS Enterprise 11.1, 11.3, and 11.5 are encouraged to patch. All users are advised to upgrade to the latest long-term support release.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 19% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PF
Portal for ArcGIS · Esri
11.1 through 11.5 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-69233
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-69233
Vendor Advisory
https://www.esri.com/arcgis-blog/products/arcgis-enterprise/administration/august-2026-arcgis-security-bulletin
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