How severe is CVE-2025-57877?

CVE-2025-57877 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-2025-57877 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-57877?

CVE-2025-57877 primarily affects Esri Portal For Arcgis. In total, 20 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2025-57877?

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

Does CVE-2025-57877 have an EU (EUVD) identifier?

Yes. CVE-2025-57877 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-31608.

When was CVE-2025-57877 published?

CVE-2025-57877 was published on 2025-09-29 and last updated on 2026-06-17.

CVE-2025-57877

CVE-2025-57877 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% (11th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-31608
Weakness: CWE-79
Affected product: Esri Portal For Arcgis
Published: 2025-09-29
Last modified: 2026-06-17

Description

There is a reflected cross site scripting vulnerability in Esri Portal for ArcGIS 11.4 and below that may allow a remote authenticated attacker with administrative access to supply a crafted string which would execute arbitrary JavaScript code in the browser.

Frequently asked questions

What is CVE-2025-57877?: There is a reflected cross site scripting vulnerability in Esri Portal for ArcGIS 11.4 and below that may allow a remote authenticated attacker with administrative access to supply a crafted string which would execute arbitrary JavaScript code in the browser.
How severe is CVE-2025-57877?: CVE-2025-57877 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-2025-57877 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-57877?: CVE-2025-57877 primarily affects Esri Portal For Arcgis. In total, 20 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2025-57877?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-57877 have an EU (EUVD) identifier?: Yes. CVE-2025-57877 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-31608.
When was CVE-2025-57877 published?: CVE-2025-57877 was published on 2025-09-29 and last updated on 2026-06-17.

References

https://www.esri.com/arcgis-blog/products/trust-arcgis/administration/portal-for-arcgis-security-2025-update-3-patch

Affected products (20)

cpe:2.3:a:esri:portal_for_arcgis:10.9.1:-:*:*:*:*:*:*
cpe:2.3:a:esri:portal_for_arcgis:10.9.1:security_2025_update1:*:*:*:*:*:*
cpe:2.3:a:esri:portal_for_arcgis:10.9.1:security_2025_update2:*:*:*:*:*:*
cpe:2.3:a:esri:portal_for_arcgis:11.0:*:*:*:*:*:*:*
cpe:2.3:a:esri:portal_for_arcgis:11.1:-:*:*:*:*:*:*
cpe:2.3:a:esri:portal_for_arcgis:11.1:security_2024_update1:*:*:*:*:*:*
cpe:2.3:a:esri:portal_for_arcgis:11.1:security_2024_update2:*:*:*:*:*:*
cpe:2.3:a:esri:portal_for_arcgis:11.1:security_2025_update1:*:*:*:*:*:*
cpe:2.3:a:esri:portal_for_arcgis:11.1:security_2025_update2:*:*:*:*:*:*
cpe:2.3:a:esri:portal_for_arcgis:11.2:-:*:*:*:*:*:*
cpe:2.3:a:esri:portal_for_arcgis:11.2:security_2024_update1:*:*:*:*:*:*
cpe:2.3:a:esri:portal_for_arcgis:11.2:security_2024_update2:*:*:*:*:*:*
cpe:2.3:a:esri:portal_for_arcgis:11.2:security_2025_update1:*:*:*:*:*:*
cpe:2.3:a:esri:portal_for_arcgis:11.2:security_2025_update2:*:*:*:*:*:*
cpe:2.3:a:esri:portal_for_arcgis:11.3:-:*:*:*:*:*:*
cpe:2.3:a:esri:portal_for_arcgis:11.3:security_2025_update1:*:*:*:*:*:*
cpe:2.3:a:esri:portal_for_arcgis:11.3:security_2025_update2:*:*:*:*:*:*
cpe:2.3:a:esri:portal_for_arcgis:11.4:-:*:*:*:*:*:*
cpe:2.3:a:esri:portal_for_arcgis:11.4:security_2025_update1:*:*:*:*:*:*
cpe:2.3:a:esri:portal_for_arcgis:11.4:security_2025_update2:*:*:*:*:*:*

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