# CVE-2007-3709: Other in n/a

> Remote attackers can inject arbitrary HTTP headers via CRLF sequences in the redirect function, potentially enabling session fixation or cache poisoning.

- **Severity:** Medium 5.0 (`AV:N/AC:L/Au:N/C:N/I:P/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 11 Jul 2007
- **Updated:** 7 Aug 2024
- **Also known as:** GHSA-2m5c-p827-r3fx

## What is CVE-2007-3709?

CVE-2007-3709 is a medium-severity vulnerability in n/a, published on 11 Jul 2007. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

CRLF injection vulnerability in the redirect function in url_helper.php in CodeIgniter 1.5.3 allows remote attackers to inject arbitrary HTTP headers via CRLF sequences in an unspecified parameter, as demonstrated by a Set-Cookie header.

## Which versions are affected by CVE-2007-3709?

It affects 1 product.


Products: Codeigniter Codeigniter.

## How do I fix CVE-2007-3709?

No fix has been published for CVE-2007-3709 yet. Limit exposure of the affected software until one is available.

## Is CVE-2007-3709 being exploited?

There is no known exploitation of CVE-2007-3709 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2025-54418](https://insights.sbomify.com/CVE-2025-54418/): CodeIgniter4's ImageMagick Handler has Command Injection Vulnerability (critical 9.8)
- [CVE-2023-32692](https://insights.sbomify.com/CVE-2023-32692/): Remote Code Execution Vulnerability in Validation Placeholders (critical 9.8)
- [CVE-2022-40824](https://insights.sbomify.com/CVE-2022-40824/): SQL injection in n/a (critical 9.8)
- [CVE-2022-40825](https://insights.sbomify.com/CVE-2022-40825/): SQL injection in n/a (critical 9.8)
- [CVE-2022-40826](https://insights.sbomify.com/CVE-2022-40826/): SQL injection in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2007-3709 and fix it if it is affected.

What it is: CVE-2007-3709 is a medium-severity vulnerability in n/a, published on 11 Jul 2007. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2007-3709 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-2007-3709/ (Markdown: https://insights.sbomify.com/CVE-2007-3709/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2007-3709
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2007-3709
- OSV: https://osv.dev/vulnerability/CVE-2007-3709

---
From sbomify Insights: https://insights.sbomify.com/CVE-2007-3709/
Summaries are generated and may contain mistakes; the official description above is the record.