# CVE-2019-19821: Privilege escalation in n/a

> Authenticated users can escalate privileges to administrative level by ignoring HTTP Location headers, allowing unauthorized data modification.

- **Severity:** High 8.1 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/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:** 16 Mar 2020
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-2gfp-2qvh-9796, GHSA-ccp3-x69x-vx8q

## What is CVE-2019-19821?

CVE-2019-19821 is a high-severity vulnerability in Combodo Itop, published on 16 Mar 2020. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A post-authentication privilege escalation in the web application of Combodo iTop allows regular authenticated users to access information and modify information with administrative privileges by not following the HTTP Location header in server responses. This is fixed in all iTop packages (community, essential, professional) in versions : 2.5.4, 2.6.3, 2.7.0

Weakness: CWE-79 (Improper Neutralization of Input During Web Page Generation)

## Which versions are affected by CVE-2019-19821?

It affects 1 product.


Products: Combodo Itop.

## How do I fix CVE-2019-19821?

No fix has been published for CVE-2019-19821 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-19821 being exploited?

There is no known exploitation of CVE-2019-19821 in the wild and no public exploit code.

## Other vulnerabilities in Combodo Itop

- [CVE-2023-48710](https://insights.sbomify.com/CVE-2023-48710/): iTop limit pages/exec.php script to PHP files (critical 9.8)
- [CVE-2022-39214](https://insights.sbomify.com/CVE-2022-39214/): Authenticated users of Combodo iTop can take over any account (critical 9.6)
- [CVE-2021-41161](https://insights.sbomify.com/CVE-2021-41161/): XSS in csvimport in 3.0.0-beta versions (critical 9.3)
- [CVE-2021-41162](https://insights.sbomify.com/CVE-2021-41162/): Cross-site Scripting in Combodo iTop (critical 9.3)
- [CVE-2025-47773](https://insights.sbomify.com/CVE-2025-47773/): Combodo iTop has XSS vulnerability in /pages/ajax.render.php (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-19821 and fix it if it is affected.

What it is: CVE-2019-19821 is a high-severity vulnerability in Combodo Itop, published on 16 Mar 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-2019-19821 in the wild and no public exploit code.

Affected product: Combodo Itop. 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-2019-19821/ (Markdown: https://insights.sbomify.com/CVE-2019-19821/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-19821
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-19821
- OSV: https://osv.dev/vulnerability/CVE-2019-19821

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-19821/
Summaries are generated and may contain mistakes; the official description above is the record.