# CVE-2020-15027: Auth bypass in n/a

> Attackers can bypass authentication in ConnectWise Automate via insufficient validation on certain paths, requiring a patch to secure the system.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 16 Jul 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-g8x9-c837-mpx5

## What is CVE-2020-15027?

CVE-2020-15027 is a critical authentication bypass vulnerability in n/a, published on 16 Jul 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

ConnectWise Automate through 2020.x has insufficient validation on certain authentication paths, allowing authentication bypass via a series of attempts. This was patched in 2020.7 and in a hotfix for 2019.12.

Weakness: CWE-287 (Improper Authentication)

## Which versions are affected by CVE-2020-15027?

It affects 1 product.


Products: Connectwise Automate.

## How do I fix CVE-2020-15027?

No fix has been published for CVE-2020-15027 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-15027 being exploited?

There is no known exploitation of CVE-2020-15027 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2021-35066](https://insights.sbomify.com/CVE-2021-35066/): XML external entity in n/a (critical 9.8)
- [CVE-2025-11492](https://insights.sbomify.com/CVE-2025-11492/): HTTP Configuration and Encryption in Transit (critical 9.6)
- [CVE-2026-9089](https://insights.sbomify.com/CVE-2026-9089/): Supply chain in Automate (high 8.8)
- [CVE-2025-11493](https://insights.sbomify.com/CVE-2025-11493/): Self-Update Verification Mechanism Process in ConnectWise Automate (high 8.8)
- [CVE-2020-15838](https://insights.sbomify.com/CVE-2020-15838/): Privilege escalation in n/a (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-15027 and fix it if it is affected.

What it is: CVE-2020-15027 is a critical authentication bypass vulnerability in n/a, published on 16 Jul 2020. 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-2020-15027 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-2020-15027/ (Markdown: https://insights.sbomify.com/CVE-2020-15027/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-15027
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-15027
- OSV: https://osv.dev/vulnerability/CVE-2020-15027

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-15027/
Summaries are generated and may contain mistakes; the official description above is the record.