# CVE-2022-34306: Cross-site scripting in CICS TX Advanced

> Attackers can inject HTTP headers to execute cross-site scripting, poison caches, or hijack sessions in IBM CICS TX servers.

- **Severity:** Medium 5.4 (`CVSS:3.0/AC:L/C:L/I:L/A:N/UI:N/PR:L/S:U/AV:N/RC:C/RL:O/E:U`)
- **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:** 8 Jul 2022
- **Updated:** 17 Sep 2024
- **Also known as:** GHSA-pgfj-mmrr-6p3w

## What is CVE-2022-34306?

CVE-2022-34306 is a medium-severity cross-site scripting vulnerability in IBM CICS TX Advanced, published on 8 Jul 2022. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

IBM CICS TX Standard and Advanced 11.1 is vulnerable to HTTP header injection, caused by improper validation of input by the HOST headers. This could allow an attacker to conduct various attacks against the vulnerable system, including cross-site scripting, cache poisoning or session hijacking. IBM X-Force ID: 229435.

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

## Which versions are affected by CVE-2022-34306?

It affects 1 product.


Products: Ibm Cics Tx.

## How do I fix CVE-2022-34306?

No fix has been published for CVE-2022-34306 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-34306 being exploited?

There is no known exploitation of CVE-2022-34306 in the wild and no public exploit code.

## Other vulnerabilities in IBM CICS TX Advanced

- [CVE-2022-31767](https://insights.sbomify.com/CVE-2022-31767/): Command injection in CICS TX Advanced (critical 9.8)
- [CVE-2025-1329](https://insights.sbomify.com/CVE-2025-1329/): IBM CICS TX code execution (high 7.8)
- [CVE-2025-1330](https://insights.sbomify.com/CVE-2025-1330/): IBM CICS TX code execution (high 7.8)
- [CVE-2025-1331](https://insights.sbomify.com/CVE-2025-1331/): IBM CICS TX code execution (high 7.8)
- [CVE-2023-33850](https://insights.sbomify.com/CVE-2023-33850/): IBM GSKit-Crypto information disclosure (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-34306 and fix it if it is affected.

What it is: CVE-2022-34306 is a medium-severity cross-site scripting vulnerability in IBM CICS TX Advanced, published on 8 Jul 2022. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2022-34306 in the wild and no public exploit code.

Affected product: IBM CICS TX Advanced. 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-2022-34306/ (Markdown: https://insights.sbomify.com/CVE-2022-34306/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-34306
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-34306
- OSV: https://osv.dev/vulnerability/CVE-2022-34306

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-34306/
Summaries are generated and may contain mistakes; the official description above is the record.