6.1

CVE-2026-69234: reflected cross site scripting vulnerability in Esri Portal for ArcGIS

Analyzed
Published 21-08-2026Last modified 24-08-2026

Vulnerability summary

CVE-2026-69234 is a medium (CVSS 6.1) Cross-site Scripting vulnerability in esri portal_for_arcgis. EPSS estimates a 0.34% chance of exploitation in the next 30 days, higher than 27.6% of scored vulnerabilities.

Overall risk
24/100
0100
Low · default modelHow is this calculated?
CVSS score
6.1/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.34%
0%100%
Low · +0.02 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Timeline

  1. 21-08-2026
    PublishedVulnerability first disclosed.
  2. 24-08-2026
    Last modifiedVulnerability information updated.

Description

There is a reflected cross site scripting vulnerability in Esri Portal for ArcGIS versions 11.5 and prior which may allow a remote, unauthenticated attacker to create a crafted link which when clicked could potentially execute arbitrary JavaScript code in the 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. Users working with ArcGIS Web App Builder developer edition are advised to migrate to ArcGIS Experience Builder, as ArcGIS Web App Builder developer edition is unsupported when this CVE is assigned.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.34%

Chance of exploitation in the next 30 days

Percentile

28%

Versus all other CVEs

30-day change

Increase +0.02 pp

From 0.33% on 26-09-2026

26-09-202626-10-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Esri1 product
  • portal_for_arcgis≥ 11.1, ≤ 11.5 | < 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

1 vendor · 1 product

References

1 links