# CVE-2011-0752: Other in n/a

> Attackers can bypass access restrictions and modify internal data structures by exploiting the EXTR_OVERWRITE parameter in PHP's extract function.

- **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 stated
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 2 Feb 2011
- **Updated:** 6 Aug 2024
- **Also known as:** GHSA-28qm-wmpf-4vwh

## What is CVE-2011-0752?

CVE-2011-0752 is a medium-severity vulnerability in Php Php, published on 2 Feb 2011. It can be exploited over the network, with no action from the victim.

### Official description

The extract function in PHP before 5.2.15 does not prevent use of the EXTR_OVERWRITE parameter to overwrite (1) the GLOBALS superglobal array and (2) the this variable, which allows context-dependent attackers to bypass intended access restrictions by modifying data structures that were not intended to depend on external input, a related issue to CVE-2005-2691 and CVE-2006-3758.

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2011-0752?

It affects 1 product.


Products: Php Php.

## How do I fix CVE-2011-0752?

No fix has been published for CVE-2011-0752 yet. Limit exposure of the affected software until one is available.

## Is CVE-2011-0752 being exploited?

There is no known exploitation of CVE-2011-0752 in the wild and no public exploit code.

## Other vulnerabilities in Php Php

- [CVE-2012-2688](https://insights.sbomify.com/CVE-2012-2688/): Integer overflow in n/a (critical 10.0)
- [CVE-2012-2376](https://insights.sbomify.com/CVE-2012-2376/): Memory corruption in n/a (critical 10.0)
- [CVE-2011-3268](https://insights.sbomify.com/CVE-2011-3268/): Memory corruption in n/a (critical 10.0)
- [CVE-2009-4143](https://insights.sbomify.com/CVE-2009-4143/): Other in n/a (critical 10.0)
- [CVE-2008-5557](https://insights.sbomify.com/CVE-2008-5557/): Memory corruption in n/a (critical 10.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2011-0752 and fix it if it is affected.

What it is: CVE-2011-0752 is a medium-severity vulnerability in Php Php, published on 2 Feb 2011. It can be exploited over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2011-0752 in the wild and no public exploit code.

Affected product: Php Php. 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-2011-0752/ (Markdown: https://insights.sbomify.com/CVE-2011-0752/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2011-0752
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2011-0752
- OSV: https://osv.dev/vulnerability/CVE-2011-0752

---
From sbomify Insights: https://insights.sbomify.com/CVE-2011-0752/
Summaries are generated and may contain mistakes; the official description above is the record.