# CVE-2012-10034: ClanSphere 2011.3 Local File Inclusion via cs_lang Cookie

> Attackers can read arbitrary files outside the web root via directory traversal in the cs_lang cookie, potentially exposing sensitive system data.

- **Severity:** High 8.7 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 5 Aug 2025
- **Updated:** 7 Apr 2026
- **Also known as:** GHSA-4m36-5v2m-v77q

## What is CVE-2012-10034?

CVE-2012-10034 is a high-severity path traversal vulnerability in ClanSphere, published on 5 Aug 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

ClanSphere 2011.3 is vulnerable to a local file inclusion (LFI) flaw due to improper handling of the cs_lang cookie parameter. The application fails to sanitize user-supplied input, allowing attackers to traverse directories and read arbitrary files outside the web root. The vulnerability is further exacerbated by null byte injection (%00) to bypass file extension checks.

Weakness: CWE-22 (Improper Limitation of a Pathname to a Restricted Directory)

## Which versions are affected by CVE-2012-10034?

It affects 1 product.


Products: Csphere Clansphere.

## How do I fix CVE-2012-10034?

No fix has been published for CVE-2012-10034 yet. Limit exposure of the affected software until one is available.

## Is CVE-2012-10034 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2012-10034 exists.

Public exploit code:

- ClanSphere 2011.3 Local File Inclusion Vulnerability (metasploit)

## Other vulnerabilities in ClanSphere

- [CVE-2010-1865](https://insights.sbomify.com/CVE-2010-1865/): SQL injection in n/a (high 7.5)
- [CVE-2022-43119](https://insights.sbomify.com/CVE-2022-43119/): Cross-site scripting in n/a (medium 6.1)
- [CVE-2021-27309](https://insights.sbomify.com/CVE-2021-27309/): Cross-site scripting in n/a (medium 6.1)
- [CVE-2021-27310](https://insights.sbomify.com/CVE-2021-27310/): Cross-site scripting in n/a (medium 6.1)
- [CVE-2011-3714](https://insights.sbomify.com/CVE-2011-3714/): Information disclosure in n/a (medium 5.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2012-10034 and fix it if it is affected.

What it is: CVE-2012-10034 is a high-severity path traversal vulnerability in ClanSphere, published on 5 Aug 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2012-10034 exists.

Affected product: ClanSphere. 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-2012-10034/ (Markdown: https://insights.sbomify.com/CVE-2012-10034/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2012-10034
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2012-10034
- OSV: https://osv.dev/vulnerability/CVE-2012-10034

---
From sbomify Insights: https://insights.sbomify.com/CVE-2012-10034/
Summaries are generated and may contain mistakes; the official description above is the record.