# CVE-2022-26156: Open redirect in n/a

> Attackers can hijack form actions via the RelayState parameter, potentially stealing user data or credentials in Cherwell Service Management.

- **Severity:** Medium 6.1 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/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:** 28 Feb 2022
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-pggh-6f57-mfx9

## What is CVE-2022-26156?

CVE-2022-26156 is a medium-severity vulnerability in n/a, published on 28 Feb 2022. 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

An issue was discovered in the web application in Cherwell Service Management (CSM) 10.2.3. Injection of a malicious payload within the RelayState= parameter of the HTTP request body results in the hijacking of the form action. Form-action hijacking vulnerabilities arise when an application places user-supplied input into the action URL of an HTML form. An attacker can use this vulnerability to construct a URL that, if visited by another application user, will modify the action URL of a form to point to the attacker's server.

Weakness: CWE-601 (URL Redirection to Untrusted Site)

## Which versions are affected by CVE-2022-26156?

It affects 1 product.


Products: Cherwell Cherwell Service Management.

## How do I fix CVE-2022-26156?

No fix has been published for CVE-2022-26156 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-26156 being exploited?

There is no known exploitation of CVE-2022-26156 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2022-26155](https://insights.sbomify.com/CVE-2022-26155/): Cross-site scripting in n/a (medium 6.1)
- [CVE-2022-26158](https://insights.sbomify.com/CVE-2022-26158/): Open redirect in n/a (medium 6.1)
- [CVE-2022-26157](https://insights.sbomify.com/CVE-2022-26157/): Information disclosure in n/a (medium 5.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-26156 and fix it if it is affected.

What it is: CVE-2022-26156 is a medium-severity vulnerability in n/a, published on 28 Feb 2022. 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-2022-26156 in the wild and no public exploit code.

Affected product: n/a. 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-2022-26156/ (Markdown: https://insights.sbomify.com/CVE-2022-26156/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-26156
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-26156
- OSV: https://osv.dev/vulnerability/CVE-2022-26156

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-26156/
Summaries are generated and may contain mistakes; the official description above is the record.