How severe is CVE-2025-55104?

CVE-2025-55104 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2025-55104 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-55104?

CVE-2025-55104 affects Esri Portal For Arcgis. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-55104?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-55104 have an EU (EUVD) identifier?

Yes. CVE-2025-55104 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-28578.

When was CVE-2025-55104 published?

CVE-2025-55104 was published on 2025-08-21 and last updated on 2026-06-17.

CVE-2025-55104

CVE-2025-55104 is a medium-severity vulnerability in Esri Portal For Arcgis with a CVSS 3.x base score of 4.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 4.8)
EPSS exploit prediction: 0% (7th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-28578
Weakness: CWE-79
Affected product: Esri Portal For Arcgis
Published: 2025-08-21
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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 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.
How severe is CVE-2025-55104?: CVE-2025-55104 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2025-55104 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-55104?: CVE-2025-55104 affects Esri Portal For Arcgis. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-55104?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-55104 have an EU (EUVD) identifier?: Yes. CVE-2025-55104 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-28578.
When was CVE-2025-55104 published?: CVE-2025-55104 was published on 2025-08-21 and last updated on 2026-06-17.

References

https://www.esri.com/arcgis-blog/products/trust-arcgis/administration/2925891-2

Affected products (1)

cpe:2.3:a:esri:portal_for_arcgis:*:*:*:*:*:*:*:*

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