# CVE-2018-10519: Privilege escalation in n/a

> An attacker can escalate privileges to admin by manipulating a cookie value due to accessible temporary files in the web root.

- **Severity:** High 8.8 (`CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **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:** 27 Apr 2018
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-fv27-jv5h-jf4q

## What is CVE-2018-10519?

CVE-2018-10519 is a high-severity vulnerability in Cmsmadesimple Cms Made Simple, published on 27 Apr 2018. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

CMS Made Simple (CMSMS) 2.2.7 contains a privilege escalation vulnerability from ordinary user to admin user by arranging for the eff_uid value within $_COOKIE[$this->_loginkey] to equal 1, because files in the tmp/ directory are accessible through HTTP requests. NOTE: this vulnerability exists because of an incorrect fix for CVE-2018-10084.

Weakness: CWE-732 (Incorrect Permission Assignment for Critical Resource)

## Which versions are affected by CVE-2018-10519?

It affects 1 product.


Products: Cmsmadesimple Cms Made Simple.

## How do I fix CVE-2018-10519?

No fix has been published for CVE-2018-10519 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-10519 being exploited?

There is no known exploitation of CVE-2018-10519 in the wild and no public exploit code.

## Other vulnerabilities in Cmsmadesimple Cms Made Simple

- [CVE-2010-4663](https://insights.sbomify.com/CVE-2010-4663/): Other in n/a (critical 10.0)
- [CVE-2024-1527](https://insights.sbomify.com/CVE-2024-1527/): Unrestricted Upload of File with Dangerous Type in CMS Made Simple (critical 9.8)
- [CVE-2018-10081](https://insights.sbomify.com/CVE-2018-10081/): Auth bypass in n/a (critical 9.8)
- [CVE-2018-10085](https://insights.sbomify.com/CVE-2018-10085/): Deserialization in n/a (critical 9.8)
- [CVE-2017-1000453](https://insights.sbomify.com/CVE-2017-1000453/): Code injection in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-10519 and fix it if it is affected.

What it is: CVE-2018-10519 is a high-severity vulnerability in Cmsmadesimple Cms Made Simple, published on 27 Apr 2018. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2018-10519 in the wild and no public exploit code.

Affected product: Cmsmadesimple Cms Made Simple. 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-2018-10519/ (Markdown: https://insights.sbomify.com/CVE-2018-10519/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-10519
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-10519
- OSV: https://osv.dev/vulnerability/CVE-2018-10519

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-10519/
Summaries are generated and may contain mistakes; the official description above is the record.