# CVE-2026-18084: Cross-Site Scripting (XSS) in Management Console of BlackBerry UEM

> An attacker can inject malicious scripts into the BlackBerry UEM Management Console, potentially compromising user sessions or executing code.

- **Severity:** High 8.6 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:L/SI:L/SA: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:** 28 Jul 2026
- **Updated:** 31 Jul 2026
- **Also known as:** GHSA-324m-xxrv-v73q

## What is CVE-2026-18084?

CVE-2026-18084 is a high-severity cross-site scripting vulnerability in BlackBerry UEM, published on 28 Jul 2026. 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

Improper Neutralization of Input During Web Page Generation vulnerability in BlackBerry UEM Management Console of BlackBerry UEM allows Cross-Site Scripting (XSS).

This issue affects UEM: 12.23.0 QF8 or earlier.

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

## Which versions are affected by CVE-2026-18084?

It affects 1 product.


Products: Blackberry Unified Endpoint Manager.

## How do I fix CVE-2026-18084?

No fix has been published for CVE-2026-18084 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-18084 being exploited?

There is no known exploitation of CVE-2026-18084 in the wild and no public exploit code.

## Other vulnerabilities in BlackBerry UEM

- [CVE-2018-8890](https://insights.sbomify.com/CVE-2018-8890/): Information disclosure in UEM (high 7.5)
- [CVE-2018-8892](https://insights.sbomify.com/CVE-2018-8892/): Cross-site request forgery in BlackBerry UEM (medium 6.5)
- [CVE-2017-17442](https://insights.sbomify.com/CVE-2017-17442/): Cross-site scripting in UEM Management Console (medium 6.1)
- [CVE-2026-18085](https://insights.sbomify.com/CVE-2026-18085/): Improper Input Validation Leads to Arbitrary File Download and Potential Denial of Service in BlackBerry UEM (medium 5.9)
- [CVE-2020-6933](https://insights.sbomify.com/CVE-2020-6933/): Denial of service in BlackBerry UEM (medium 5.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-18084 and fix it if it is affected.

What it is: CVE-2026-18084 is a high-severity cross-site scripting vulnerability in BlackBerry UEM, published on 28 Jul 2026. 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-2026-18084 in the wild and no public exploit code.

Affected product: BlackBerry UEM. 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-2026-18084/ (Markdown: https://insights.sbomify.com/CVE-2026-18084/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-18084
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-18084
- OSV: https://osv.dev/vulnerability/CVE-2026-18084

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-18084/
Summaries are generated and may contain mistakes; the official description above is the record.