# CVE-2025-57876: Stored XSS vulnerability in Portal for ArcGIS

> Authenticated attackers can inject malicious scripts via files to execute JavaScript and steal tokens, potentially gaining full control of the Portal.

- **Severity:** Medium 4.8 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 29 Sep 2025
- **Updated:** 29 Sep 2025
- **Also known as:** GHSA-5hv4-vxm3-hpvc

## What is CVE-2025-57876?

CVE-2025-57876 is a medium-severity cross-site scripting vulnerability in Esri Portal for Arcgis, published on 29 Sep 2025. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

### Official description

There is a stored Cross-site Scripting vulnerability in  Esri Portal for ArcGIS  11.4 and below that may allow a remote, authenticated attacker to inject malicious a file with an embedded xss script which when loaded could potentially execute arbitrary JavaScript code in the victim’s browser. The privileges required to execute this attack are high. The attack could disclose a privileged token which may result in the attacker gaining full control of the Portal.

Weakness: CWE-79 (Improper Neutralization of Input During Web Page Generation)

## Which versions are affected by CVE-2025-57876?

It affects 1 product.


Products: Esri Portal for Arcgis.

## How do I fix CVE-2025-57876?

No fix has been published for CVE-2025-57876 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-57876 being exploited?

There is no known exploitation of CVE-2025-57876 in the wild and no public exploit code.

## Other vulnerabilities in Esri Portal for Arcgis

- [CVE-2024-25693](https://insights.sbomify.com/CVE-2024-25693/): Portal for ArcGIS has a directory traversal vulnerability. (critical 9.9)
- [CVE-2026-13019](https://insights.sbomify.com/CVE-2026-13019/): Missing Authentication (critical 9.8)
- [CVE-2026-33518](https://insights.sbomify.com/CVE-2026-33518/): Incorrect privilege assignment in Portal for ArcGIS (critical 9.8)
- [CVE-2026-33519](https://insights.sbomify.com/CVE-2026-33519/): Incorrect privilege assignment in Portal for ArcGIS (critical 9.8)
- [CVE-2025-2538](https://insights.sbomify.com/CVE-2025-2538/): BUG-000174336 (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-57876 and fix it if it is affected.

What it is: CVE-2025-57876 is a medium-severity cross-site scripting vulnerability in Esri Portal for Arcgis, published on 29 Sep 2025. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2025-57876 in the wild and no public exploit code.

Affected product: Esri Portal for Arcgis. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2025-57876/ (Markdown: https://insights.sbomify.com/CVE-2025-57876/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-57876
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-57876
- OSV: https://osv.dev/vulnerability/CVE-2025-57876

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-57876/
Summaries are generated and may contain mistakes; the official description above is the record.