# CVE-2019-12924: XML external entity in n/a

> Unauthenticated attackers can exploit XXE to read arbitrary files and steal cleartext credentials from MailEnable Enterprise Premium.

- **Severity:** Critical 9.8 (`CVSS:3.0/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:** 8 Jul 2019
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-659q-9945-g8jr

## What is CVE-2019-12924?

CVE-2019-12924 is a critical vulnerability in Mailenable Mailenable, published on 8 Jul 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

MailEnable Enterprise Premium 10.23 was vulnerable to XML External Entity Injection (XXE) attacks that could be exploited by an unauthenticated user. It was possible for an attacker to use a vulnerability in the configuration of the XML processor to read any file on the host system. Because all credentials were stored in a cleartext file, it was possible to steal all users' credentials (including the highest privileged users).

Weakness: CWE-611 (Improper Restriction of XML External Entity Reference), CWE-311 (Missing Encryption of Sensitive Data)

## Which versions are affected by CVE-2019-12924?

It affects 1 product.


Products: Mailenable Mailenable.

## How do I fix CVE-2019-12924?

No fix has been published for CVE-2019-12924 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-12924 being exploited?

There is no known exploitation of CVE-2019-12924 in the wild and no public exploit code.

## Other vulnerabilities in Mailenable Mailenable

- [CVE-2015-9280](https://insights.sbomify.com/CVE-2015-9280/): XML external entity in n/a (critical 10.0)
- [CVE-2025-44148](https://insights.sbomify.com/CVE-2025-44148/): Cross-site scripting in n/a (critical 9.8)
- [CVE-2015-9278](https://insights.sbomify.com/CVE-2015-9278/): MailEnable before 8.60 allows Privilege Escalation because admin accounts could be created as a consequence of %0A mishandling in AUTH.TAB a (critical 9.8)
- [CVE-2015-9277](https://insights.sbomify.com/CVE-2015-9277/): Path traversal in n/a (critical 9.1)
- [CVE-2022-42136](https://insights.sbomify.com/CVE-2022-42136/): Path traversal in n/a (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-12924 and fix it if it is affected.

What it is: CVE-2019-12924 is a critical vulnerability in Mailenable Mailenable, published on 8 Jul 2019. 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-2019-12924 in the wild and no public exploit code.

Affected product: Mailenable Mailenable. 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-2019-12924/ (Markdown: https://insights.sbomify.com/CVE-2019-12924/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-12924
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-12924
- OSV: https://osv.dev/vulnerability/CVE-2019-12924

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-12924/
Summaries are generated and may contain mistakes; the official description above is the record.