# CVE-2011-5277: SQL injection in n/a

> Remote attackers can execute arbitrary SQL commands via multiple parameters in the Advanced Forum Signatures plugin for MyBB.

- **Severity:** High 7.5 (`AV:N/AC:L/Au:N/C:P/I:P/A:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 8 Apr 2014
- **Updated:** 7 Aug 2024
- **Also known as:** GHSA-gg5p-5hw9-qmgj

## What is CVE-2011-5277?

CVE-2011-5277 is a high-severity SQL injection vulnerability in n/a, published on 8 Apr 2014. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Multiple SQL injection vulnerabilities in signature.php in the Advanced Forum Signatures (aka afsignatures) plugin 2.0.4 for MyBB allow remote attackers to execute arbitrary SQL commands via the (1) afs_type, (2) afs_background, (3) afs_showonline, (4) afs_bar_left, (5) afs_bar_center, (6) afs_full_line1, (7) afs_full_line2, (8) afs_full_line3, (9) afs_full_line4, (10) afs_full_line5, or (11) afs_full_line6 parameter.  NOTE: the provenance of this information is unknown; the details are obtained solely from third party information.

Weakness: CWE-89 (Improper Neutralization of Special Elements used in an SQL Command)

## Which versions are affected by CVE-2011-5277?

It affects 1 product.


Products: Advanced Forum Signatures Project Advanced Forum Signatures.

## How do I fix CVE-2011-5277?

No fix has been published for CVE-2011-5277 yet. Limit exposure of the affected software until one is available.

## Is CVE-2011-5277 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2011-5277 exists.

Public exploit code:

- MyBB Advanced Forum Signatures - 'afsignatures-2.0.4' SQL Injection (exploitdb)

## Other vulnerabilities in n/a

- [CVE-2011-5278](https://insights.sbomify.com/CVE-2011-5278/): SQL injection in n/a (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2011-5277 and fix it if it is affected.

What it is: CVE-2011-5277 is a high-severity SQL injection vulnerability in n/a, published on 8 Apr 2014. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2011-5277 exists.

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-2011-5277/ (Markdown: https://insights.sbomify.com/CVE-2011-5277/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2011-5277
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2011-5277
- OSV: https://osv.dev/vulnerability/CVE-2011-5277

---
From sbomify Insights: https://insights.sbomify.com/CVE-2011-5277/
Summaries are generated and may contain mistakes; the official description above is the record.