# CVE-2020-4085: Information disclosure in "HCL Connections"

> A local user can obtain sensitive information via stack traces in HCL Connections, requiring a patch to mitigate the leak.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 22 Apr 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-2vgf-299m-xvm7

## What is CVE-2020-4085?

CVE-2020-4085 is a medium-severity vulnerability in "HCL Connections", published on 22 Apr 2020. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

"HCL Connections is vulnerable to possible information leakage and could disclose sensitive information via stack trace to a local user."

Weakness: CWE-209 (Generation of Error Message Containing Sensitive Information)

## Which versions are affected by CVE-2020-4085?

It affects 1 product.


Products: Hcltech Connections.

## How do I fix CVE-2020-4085?

No fix has been published for CVE-2020-4085 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-4085 being exploited?

There is no known exploitation of CVE-2020-4085 in the wild and no public exploit code.

## Other vulnerabilities in "HCL Connections"

- [CVE-2019-4209](https://insights.sbomify.com/CVE-2019-4209/): Open redirect in HCL Connections (medium 6.1)
- [CVE-2023-28018](https://insights.sbomify.com/CVE-2023-28018/): HCL Connections s vulnerable to possible denial of service for certain users (medium 5.5)
- [CVE-2020-4083](https://insights.sbomify.com/CVE-2020-4083/): Information disclosure in "HCL Connections" (medium 5.5)
- [CVE-2026-21788](https://insights.sbomify.com/CVE-2026-21788/): HCL Connections is vulnerable to cross-site scripting (XSS) (medium 5.4)
- [CVE-2024-30112](https://insights.sbomify.com/CVE-2024-30112/): HCL Connections is vulnerable to a cross-site scripting (XSS) vulnerability (medium 5.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-4085 and fix it if it is affected.

What it is: CVE-2020-4085 is a medium-severity vulnerability in "HCL Connections", published on 22 Apr 2020. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2020-4085 in the wild and no public exploit code.

Affected product: "HCL Connections". 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-2020-4085/ (Markdown: https://insights.sbomify.com/CVE-2020-4085/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-4085
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-4085
- OSV: https://osv.dev/vulnerability/CVE-2020-4085

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From sbomify Insights: https://insights.sbomify.com/CVE-2020-4085/
Summaries are generated and may contain mistakes; the official description above is the record.