# CVE-2018-12903: Cross-site scripting in n/a

> Persistent XSS in CyberArk Endpoint Privilege Manager allows attackers to inject scripts via account names and UI fields, potentially leading to code execution or account takeover.

- **Severity:** Medium 5.4 (`CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 26 Jun 2018
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-wp3v-g7wr-j8jh

## What is CVE-2018-12903?

CVE-2018-12903 is a medium-severity cross-site scripting vulnerability in n/a, published on 26 Jun 2018. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

In CyberArk Endpoint Privilege Manager (formerly Viewfinity) 10.2.1.603, there is persistent XSS via an account name on the create token screen, the VfManager.asmx SelectAccounts->DisplayName screen, a user's groups in ConfigurationPage, the Dialog Title field, and App Group Name in the Application Group Wizard.

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

## Which versions are affected by CVE-2018-12903?

It affects 1 product.


Products: Cyberark Endpoint Privilege Manager.

## How do I fix CVE-2018-12903?

No fix has been published for CVE-2018-12903 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-12903 being exploited?

There is no known exploitation of CVE-2018-12903 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2018-13052](https://insights.sbomify.com/CVE-2018-13052/): Privilege escalation in n/a (critical 9.8)
- [CVE-2026-2914](https://insights.sbomify.com/CVE-2026-2914/): Privilege escalation in Endpoint Privilege Manager Agent (high 8.5)
- [CVE-2025-66374](https://insights.sbomify.com/CVE-2025-66374/): Privilege escalation in n/a (high 7.8)
- [CVE-2021-44049](https://insights.sbomify.com/CVE-2021-44049/): Privilege escalation in n/a (high 7.8)
- [CVE-2018-14894](https://insights.sbomify.com/CVE-2018-14894/): Security feature bypass in n/a (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-12903 and fix it if it is affected.

What it is: CVE-2018-12903 is a medium-severity cross-site scripting vulnerability in n/a, published on 26 Jun 2018. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2018-12903 in the wild and no public exploit code.

Affected product: n/a. 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-2018-12903/ (Markdown: https://insights.sbomify.com/CVE-2018-12903/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-12903
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-12903
- OSV: https://osv.dev/vulnerability/CVE-2018-12903

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-12903/
Summaries are generated and may contain mistakes; the official description above is the record.