# CVE-2024-51995: Logic bug in ajax.render.php allows for bypass of 'backOffice' access control in Combodo iTop

> Attackers can bypass backOffice access controls in Combodo iTop by specifying allowed operations with arbitrary routes, requiring an upgrade to fix.

- **Severity:** High 7.1 (`CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/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:** 7 Nov 2024
- **Updated:** 7 Nov 2024
- **Also known as:** GHSA-3mxr-8r3j-j2j9

## What is CVE-2024-51995?

CVE-2024-51995 is a high-severity missing authorization vulnerability in Combodo Itop, published on 7 Nov 2024. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Combodo iTop is a web based IT Service Management tool. An attacker can request any `route` we want as long as we specify an `operation` that is allowed. This issue has been addressed in version 3.2.0 by applying the same access control pattern as in `UI.php` to the `ajax.render.php` page which does not allow arbitrary `routes` to be dispatched. All users are advised to upgrade. There are no known workarounds for this vulnerability.

Weakness: CWE-284 (Improper Access Control)

## Which versions are affected by CVE-2024-51995?

It affects 1 product.


Products: Combodo Itop.

## How do I fix CVE-2024-51995?

No fix has been published for CVE-2024-51995 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-51995 being exploited?

There is no known exploitation of CVE-2024-51995 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-2024-51995 and fix it if it is affected.

What it is: CVE-2024-51995 is a high-severity missing authorization vulnerability in Combodo Itop, published on 7 Nov 2024. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2024-51995 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-2024-51995/ (Markdown: https://insights.sbomify.com/CVE-2024-51995/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-51995
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-51995
- OSV: https://osv.dev/vulnerability/CVE-2024-51995

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-51995/
Summaries are generated and may contain mistakes; the official description above is the record.