ZDF
Sign inSign up

Vulnerabilities

Security incident · CVE-2025-55104

A stored cross-site scripting (XSS) vulnerability exists ArcGIS HUB and ArcGIS Enterprise Sites which allows an authenticated user with the ability to create or edit a site to add

Published Aug 21, 2025 · catalog updated Aug 21, 2025 · Esri Portal for ArcGIS Enterprise Sites

Last checked Oct 29, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2025-55104. EPSS is 0.19%. Act only if a listed version of Esri Portal for ArcGIS Enterprise Sites is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
Medium4.8
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.19%
Remediation
Vendor / distro source
Affected products
vendor Esri Portal for ArcGIS Enterprise Sites 10.9.1 ≤11.4

A stored cross-site scripting (XSS) vulnerability exists ArcGIS HUB and ArcGIS Enterprise Sites which allows an authenticated user with the ability to create or edit a site to add and store an XSS payload. If this stored XSS payload is triggered by any user attacker supplied JavaScript may execute in the victim's browser.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor Esri Portal for ArcGIS Enterprise Sites 10.9.1 ≤11.410.9.1 ≤11.4

How to fix CVE-2025-55104

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-55104. EPSS is 0.19%. Act only if a listed version of Esri Portal for ArcGIS Enterprise Sites is installed.

Which versions are affected?

Compare what you have installed with Esri Portal for ArcGIS Enterprise Sites 10.9.1 ≤11.4 10.9.1 ≤11.4. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.19%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Aug 21, 2025 · EUVD

    Detected

    A stored cross-site scripting (XSS) vulnerability exists ArcGIS HUB and ArcGIS Enterprise Sites which allows an authenticated user with the ability to create or edit a site to add and store an XSS payload. If this stored XSS payload is triggered by any user attacker supplied JavaScript may execute in the victim's browser.

  2. Aug 21, 2025 · EUVD

    Updated

    A stored cross-site scripting (XSS) vulnerability exists ArcGIS HUB and ArcGIS Enterprise Sites which allows an authenticated user with the ability to create or edit a site to add and store an XSS payload. If this stored XSS payload is triggered by any user attacker supplied JavaScript may execute in the victim's browser.

Sources

  • CVE.orgVulnerability recordCVE-2025-55104

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-55104

    30-day exploitation probability 0.19%

    first.org
  • EUVDVulnerability recordEUVD-2025-28578

    A stored cross-site scripting (XSS) vulnerability exists ArcGIS HUB and ArcGIS Enterprise Sites which allows an authenticated user with the ability to create or edit a site to add and store an XSS payload. If this stored XSS payload is triggered by any user attacker supplied Java

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 29, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSOct 23, 2026
  • CVE.orgOct 22, 2026
  • EUVDOct 22, 2026