# CVE-2021-44848: Information disclosure in n/a

> An attacker can enumerate valid usernames by observing different responses from the password change endpoint, facilitating targeted attacks.

- **Severity:** Medium 5.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/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:** 13 Dec 2021
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-qhw5-g2xc-xpwq

## What is CVE-2021-44848?

CVE-2021-44848 is a medium-severity vulnerability in n/a, published on 13 Dec 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

In Cibele Thinfinity VirtualUI before 3.0, /changePassword returns different responses for invalid authentication requests depending on whether the username exists.

Weakness: CWE-203 (Observable Discrepancy)

## Which versions are affected by CVE-2021-44848?

It affects 1 product.


Products: Cybelesoft Thinfinity Virtualui.

## How do I fix CVE-2021-44848?

No fix has been published for CVE-2021-44848 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-44848 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-44848 exists.

Public exploit code:

- Cibele Thinfinity VirtualUI 2.5.41.0 - User Enumeration (exploitdb)
- Thinfinity VirtualUI User Enumeration (nuclei): http/cves/2021/CVE-2021-44848.yaml

## Other vulnerabilities in n/a

- [CVE-2021-45092](https://insights.sbomify.com/CVE-2021-45092/): Cross-site scripting in n/a (critical 9.8)
- [CVE-2021-46354](https://insights.sbomify.com/CVE-2021-46354/): Information disclosure in n/a (high 7.5)
- [CVE-2019-16384](https://insights.sbomify.com/CVE-2019-16384/): Path traversal in n/a (medium 6.5)
- [CVE-2019-16385](https://insights.sbomify.com/CVE-2019-16385/): Cross-site scripting in n/a (medium 6.1)
- [CVE-2021-44554](https://insights.sbomify.com/CVE-2021-44554/): Information disclosure in n/a (medium 5.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-44848 and fix it if it is affected.

What it is: CVE-2021-44848 is a medium-severity vulnerability in n/a, published on 13 Dec 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-44848 exists.

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-2021-44848/ (Markdown: https://insights.sbomify.com/CVE-2021-44848/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-44848
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-44848
- OSV: https://osv.dev/vulnerability/CVE-2021-44848

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-44848/
Summaries are generated and may contain mistakes; the official description above is the record.