# CVE-2018-17542: SQL Injection exists in MailSherlock before 1.5.235 for OAKlouds

> Unauthenticated attackers can extract email subjects from other users via SQL injection in the select_mid parameter.

- **Severity:** Medium 4.3 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:R/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:** A user has to click or open something
- **Fix available:** No
- **Published:** 11 Feb 2019
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-77r5-xf97-q83j

## What is CVE-2018-17542?

CVE-2018-17542 is a medium-severity SQL injection vulnerability in OAKlouds MailSherlock, published on 11 Feb 2019. 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

SQL Injection exists in MailSherlock before 1.5.235 for OAKlouds allows an unauthenticated user to extract the subjects of the emails of other users within the enterprise via the select_mid parameter in an letgo.cgi request.

Weakness: CWE-89 (Improper Neutralization of Special Elements used in an SQL Command)

## Which versions are affected by CVE-2018-17542?

It affects 1 product.


Products: Hgiga Oaklouds Mailsherlock.

## How do I fix CVE-2018-17542?

No fix has been published for CVE-2018-17542 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-17542 being exploited?

There is no known exploitation of CVE-2018-17542 in the wild and no public exploit code.

## Other vulnerabilities in OAKlouds MailSherlock

- [CVE-2023-24840](https://insights.sbomify.com/CVE-2023-24840/): HGiga MailSherlock - SQL Injection (high 7.2)
- [CVE-2023-24841](https://insights.sbomify.com/CVE-2023-24841/): HGiga MailSherlock - Command Injection (high 7.2)
- [CVE-2023-24839](https://insights.sbomify.com/CVE-2023-24839/): HGiga MailSherlock - Reflected XSS (medium 6.1)
- [CVE-2023-24842](https://insights.sbomify.com/CVE-2023-24842/): HGiga MailSherlock - Broken Access Control (medium 5.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-17542 and fix it if it is affected.

What it is: CVE-2018-17542 is a medium-severity SQL injection vulnerability in OAKlouds MailSherlock, published on 11 Feb 2019. 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-2018-17542 in the wild and no public exploit code.

Affected product: OAKlouds MailSherlock. 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-2018-17542/ (Markdown: https://insights.sbomify.com/CVE-2018-17542/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-17542
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-17542
- OSV: https://osv.dev/vulnerability/CVE-2018-17542

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From sbomify Insights: https://insights.sbomify.com/CVE-2018-17542/
Summaries are generated and may contain mistakes; the official description above is the record.