# CVE-2011-4958: Cross-site scripting in n/a

> Remote attackers can inject arbitrary web script or HTML via the QUERY_STRING in SilverStripe admin pages, potentially leading to session hijacking or data theft.

- **Severity:** Medium 4.3 (`AV:N/AC:M/Au:N/C:N/I:P/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 8 Apr 2014
- **Updated:** 7 Aug 2024
- **Also known as:** GHSA-hvm5-xrxv-6g4q

## What is CVE-2011-4958?

CVE-2011-4958 is a medium-severity cross-site scripting vulnerability in Silverstripe Silverstripe, published on 8 Apr 2014. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

Cross-site scripting (XSS) vulnerability in the process function in SSViewer.php in SilverStripe before 2.3.13 and 2.4.x before 2.4.6 allows remote attackers to inject arbitrary web script or HTML via the QUERY_STRING to template placeholders, as demonstrated by a request to (1) admin/reports/, (2) admin/comments/, (3) admin/, (4) admin/show/, (5) admin/assets/, and (6) admin/security/.

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

## Which versions are affected by CVE-2011-4958?

It affects 1 product.


Products: Silverstripe Silverstripe.

## How do I fix CVE-2011-4958?

No fix has been published for CVE-2011-4958 yet. Limit exposure of the affected software until one is available.

## Is CVE-2011-4958 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2011-4958 exists.

Public exploit code:

- SilverStripe CMS 2.4.5 - Multiple Cross-Site Scripting Vulnerabilities (exploitdb)

## Other vulnerabilities in Silverstripe Silverstripe

- [CVE-2007-2321](https://insights.sbomify.com/CVE-2007-2321/): Other in n/a (critical 10.0)
- [CVE-2019-12204](https://insights.sbomify.com/CVE-2019-12204/): Missing warning can lead to unauthenticated admin access in SilverStripe (critical 9.8)
- [CVE-2019-5715](https://insights.sbomify.com/CVE-2019-5715/): Silverstripe Framework SQLi Vulnerability (critical 9.8)
- [CVE-2019-12437](https://insights.sbomify.com/CVE-2019-12437/): Silverstripe CSRF Protection Bypass via GraphQL (high 8.8)
- [CVE-2020-6164](https://insights.sbomify.com/CVE-2020-6164/): Silverstripe CMS information disclosure (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2011-4958 and fix it if it is affected.

What it is: CVE-2011-4958 is a medium-severity cross-site scripting vulnerability in Silverstripe Silverstripe, published on 8 Apr 2014. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2011-4958 exists.

Affected product: Silverstripe Silverstripe. 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-2011-4958/ (Markdown: https://insights.sbomify.com/CVE-2011-4958/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2011-4958
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2011-4958
- OSV: https://osv.dev/vulnerability/CVE-2011-4958

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From sbomify Insights: https://insights.sbomify.com/CVE-2011-4958/
Summaries are generated and may contain mistakes; the official description above is the record.