# CVE-2025-13556: Campcodes Online Polling System checklogin.php sql injection

> Remote attackers can exploit SQL injection in the login form to access or modify database information in the Online Polling System.

- **Severity:** Medium 6.9 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 23 Nov 2025
- **Updated:** 24 Feb 2026
- **Also known as:** GHSA-pw6c-7qmg-mqjh

## What is CVE-2025-13556?

CVE-2025-13556 is a medium-severity SQL injection vulnerability in Campcodes Online Polling System, published on 23 Nov 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A flaw has been found in Campcodes Online Polling System 1.0. Affected by this vulnerability is an unknown functionality of the file /admin/checklogin.php. Executing a manipulation of the argument myusername can lead to sql injection. The attack can be launched remotely. The exploit has been published and may be used.

Weakness: CWE-89 (Improper Neutralization of Special Elements used in an SQL Command), CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component)

## Which versions are affected by CVE-2025-13556?

It affects 1 product.


Products: Campcodes Online Polling System.

## How do I fix CVE-2025-13556?

No fix has been published for CVE-2025-13556 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-13556 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-13556 exists.

## Other vulnerabilities in Campcodes Online Polling System

- [CVE-2025-13557](https://insights.sbomify.com/CVE-2025-13557/): Campcodes Online Polling System registeracc.php sql injection (medium 6.9)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-13556 and fix it if it is affected.

What it is: CVE-2025-13556 is a medium-severity SQL injection vulnerability in Campcodes Online Polling System, published on 23 Nov 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-2025-13556 exists.

Affected product: Campcodes Online Polling System. 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-2025-13556/ (Markdown: https://insights.sbomify.com/CVE-2025-13556/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-13556
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-13556
- OSV: https://osv.dev/vulnerability/CVE-2025-13556

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-13556/
Summaries are generated and may contain mistakes; the official description above is the record.