# CVE-2015-2149: Cross-site scripting in n/a

> Authenticated administrators can inject arbitrary scripts via multiple input fields in the MyBB admin backend, potentially leading to session hijacking or code execution.

- **Severity:** Low 3.5 (`AV:N/AC:M/Au:S/C:N/I:P/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 18 Mar 2015
- **Updated:** 6 Aug 2024
- **Also known as:** GHSA-64f8-99rg-qfh2

## What is CVE-2015-2149?

CVE-2015-2149 is a low-severity cross-site scripting vulnerability in Mybb Mybb, published on 18 Mar 2015. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

### Official description

Multiple cross-site scripting (XSS) vulnerabilities in the administrative backend in MyBB (aka MyBulletinBoard) before 1.8.4 allow remote authenticated users to inject arbitrary web script or HTML via the (1) MIME-type field in an add action in the config-attachment_types module to admin/index.php; (2) title or (3) short description field in an add action in the (a) config-mycode or (b) user-groups module to admin/index.php; (4) title field in an add action in the (c) forum-management or (d) tool-tasks module to admin/index.php; (5) name field in an add_set action in the style-templates module to admin/index.php; (6) title field in an add_template_group action in the style-templates module to admin/index.php; (7) name field in an add action in the config-post_icons module to admin/index.php; (8) "title to assign" field in an add action in the user-titles module to admin/index.php; or (9) username field in the config-banning module to admin/index.php.

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

## Which versions are affected by CVE-2015-2149?

It affects 1 product.


Products: Mybb Mybb.

## How do I fix CVE-2015-2149?

No fix has been published for CVE-2015-2149 yet. Limit exposure of the affected software until one is available.

## Is CVE-2015-2149 being exploited?

There is no known exploitation of CVE-2015-2149 in the wild and no public exploit code.

## Other vulnerabilities in Mybb Mybb

- [CVE-2011-10018](https://insights.sbomify.com/CVE-2011-10018/): myBB 1.6.4 Backdoor Arbitrary Command Execution (critical 10.0)
- [CVE-2015-2786](https://insights.sbomify.com/CVE-2015-2786/): Information disclosure in n/a (critical 10.0)
- [CVE-2011-5133](https://insights.sbomify.com/CVE-2011-5133/): Cross-site scripting in n/a (critical 10.0)
- [CVE-2006-0218](https://insights.sbomify.com/CVE-2006-0218/): SQL injection in n/a (critical 10.0)
- [CVE-2020-22612](https://insights.sbomify.com/CVE-2020-22612/): Code injection in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2015-2149 and fix it if it is affected.

What it is: CVE-2015-2149 is a low-severity cross-site scripting vulnerability in Mybb Mybb, published on 18 Mar 2015. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2015-2149 in the wild and no public exploit code.

Affected product: Mybb Mybb. 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-2015-2149/ (Markdown: https://insights.sbomify.com/CVE-2015-2149/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2015-2149
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2015-2149
- OSV: https://osv.dev/vulnerability/CVE-2015-2149

---
From sbomify Insights: https://insights.sbomify.com/CVE-2015-2149/
Summaries are generated and may contain mistakes; the official description above is the record.