CVE-2026-69236: stored cross site scripting issue in Esri Portal for ArcGIS
Vulnerability summary
CVE-2026-69236 is a medium (CVSS 6.1) Cross-site Scripting vulnerability in esri portal_for_arcgis. EPSS estimates a 0.30% chance of exploitation in the next 30 days, higher than 22.6% of scored vulnerabilities.
Timeline
- 21-08-2026PublishedVulnerability first disclosed.
- 24-08-2026Last modifiedVulnerability information updated.
Description
There is a stored cross site scripting issue in Esri Portal for ArcGIS versions 12.1 and prior that may allow a remote, privileged attacker to inject malicious code that could potentially execute arbitrary JavaScript in a victim’s browser. Users working with ArcGIS Enterprise 11.1, 11.3, 11.5, 12.0 or 12.1 are encouraged to patch. All users are advised to upgrade to the latest long-term support release 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
Probability
0.30%
Chance of exploitation in the next 30 days
Percentile
23%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.30% on 26-09-2026
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
- portal_for_arcgis≥ 11.1, ≤ 12.1 | < 11.1 | 11.1 | 11.1:security_2024_update1 | 11.1:security_2024_update2 | 11.1:security_2025_update1 | 11.1:security_2025_update2 | 11.1:security_2025_update3 | 11.1:security_2026_update2 | 11.2 | 11.3 | 11.3:security_2025_update1 | 11.3:security_2025_update2 | 11.3:security_2025_update3 | 11.3:security_2026_update2 | 11.4 | 11.5 | 11.5:security_2026_update1 | 11.5:security_2026_update2 | 12.0 | 12.0:security_2026_update1 | 12.0:security_2026_update2 | 12.1 | 12.1:security_2026_update2
1 vendor · 1 product
References
1 links- www.esri.com/arcgis-blog/…Vendor Advisory