# CVE-2021-29113: Remote file inclusion vulnerability in ArcGIS Server help documentation

> Remote unauthenticated attackers can inject HTML into ArcGIS Server help documentation pages, potentially leading to code execution or security bypass.

- **Severity:** Medium 4.7 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 7 Dec 2021
- **Updated:** 10 Apr 2025
- **Also known as:** GHSA-g6v3-v698-j2cr

## What is CVE-2021-29113?

CVE-2021-29113 is a medium-severity cross-site scripting vulnerability in Esri Arcgis Server, published on 7 Dec 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

A remote file inclusion vulnerability in the ArcGIS Server help documentation may allow a remote, unauthenticated attacker to inject attacker supplied html into a page.

Weakness: CWE-829 (Inclusion of Functionality from Untrusted Control Sphere), CWE-98 (Improper Control of Filename for Include/Require Statement in PHP Program)

## Which versions are affected by CVE-2021-29113?

It affects 1 product.


Products: Esri Arcgis Server.

## How do I fix CVE-2021-29113?

No fix has been published for CVE-2021-29113 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-29113 being exploited?

There is no known exploitation of CVE-2021-29113 in the wild and no public exploit code.

## Other vulnerabilities in Esri Arcgis Server

- [CVE-2025-57870](https://insights.sbomify.com/CVE-2025-57870/): BUG-000179884 - There is a security vulnerability in ArcGIS Server Feature Services. (critical 10.0)
- [CVE-2026-9181](https://insights.sbomify.com/CVE-2026-9181/): Directory Traversal in ArcGIS Server (critical 9.8)
- [CVE-2026-9182](https://insights.sbomify.com/CVE-2026-9182/): Unvalidated File Upload vulnerability in ArcGIS Server. (critical 9.8)
- [CVE-2020-35712](https://insights.sbomify.com/CVE-2020-35712/): Server-side request forgery in n/a (critical 9.8)
- [CVE-2021-29102](https://insights.sbomify.com/CVE-2021-29102/): There is a Server-Side Request Forgery (SSRF) vulnerability in Esri ArcGIS Server Manager version 10.8.1 and below. (critical 9.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-29113 and fix it if it is affected.

What it is: CVE-2021-29113 is a medium-severity cross-site scripting vulnerability in Esri Arcgis Server, published on 7 Dec 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2021-29113 in the wild and no public exploit code.

Affected product: Esri Arcgis Server. 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-2021-29113/ (Markdown: https://insights.sbomify.com/CVE-2021-29113/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-29113
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-29113
- OSV: https://osv.dev/vulnerability/CVE-2021-29113

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-29113/
Summaries are generated and may contain mistakes; the official description above is the record.