# CVE-2018-8890: Information disclosure in UEM

> An information disclosure flaw in BlackBerry UEM allows attackers to hijack user sessions and perform administrative actions.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 12 Oct 2018
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-4f93-r4j2-chgf

## What is CVE-2018-8890?

CVE-2018-8890 is a high-severity vulnerability in BlackBerry UEM, published on 12 Oct 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

An information disclosure vulnerability in the Management Console of BlackBerry UEM 12.8.0 and 12.8.1 could allow an attacker to take over a UEM user's session and perform administrative actions in the context of the user.

Weakness: CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor)

## Which versions are affected by CVE-2018-8890?

It affects 1 product.


Products: Blackberry Unified Endpoint Manager.

## How do I fix CVE-2018-8890?

No fix has been published for CVE-2018-8890 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-8890 being exploited?

There is no known exploitation of CVE-2018-8890 in the wild and no public exploit code.

## Other vulnerabilities in BlackBerry UEM

- [CVE-2026-18084](https://insights.sbomify.com/CVE-2026-18084/): Cross-Site Scripting (XSS) in Management Console of BlackBerry UEM (high 8.6)
- [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-2018-8890 and fix it if it is affected.

What it is: CVE-2018-8890 is a high-severity vulnerability in BlackBerry UEM, published on 12 Oct 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2018-8890 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-2018-8890/ (Markdown: https://insights.sbomify.com/CVE-2018-8890/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-8890
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-8890
- OSV: https://osv.dev/vulnerability/CVE-2018-8890

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-8890/
Summaries are generated and may contain mistakes; the official description above is the record.