# CVE-2025-11421: code-projects Voting System candidates_edit.php cross site scripting

> Attackers can inject malicious scripts via candidate fields in the Voting System admin panel, potentially compromising user sessions and data.

- **Severity:** Medium 5.1 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P`)
- **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 Oct 2025
- **Updated:** 24 Feb 2026
- **Also known as:** GHSA-v9jx-pc2p-jr8p

## What is CVE-2025-11421?

CVE-2025-11421 is a medium-severity cross-site scripting vulnerability in code-projects Voting System, published on 8 Oct 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

A flaw has been found in code-projects Voting System 1.0. The affected element is an unknown function of the file /admin/candidates_edit.php. This manipulation of the argument Firstname/Lastname/Platform causes cross site scripting. Remote exploitation of the attack is possible. The exploit has been published and may be used.

Weakness: CWE-94 (Improper Control of Generation of Code), CWE-79 (Improper Neutralization of Input During Web Page Generation)

## Which versions are affected by CVE-2025-11421?

It affects 1 product.


Products: Fabian Voting System.

## How do I fix CVE-2025-11421?

No fix has been published for CVE-2025-11421 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-11421 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-11421 exists.

## Other vulnerabilities in code-projects Voting System

- [CVE-2025-11512](https://insights.sbomify.com/CVE-2025-11512/): code-projects Voting System voters_add.php cross site scripting (medium 5.3)
- [CVE-2025-8174](https://insights.sbomify.com/CVE-2025-8174/): code-projects Voting System candidates_add.php unrestricted upload (medium 5.3)
- [CVE-2025-7555](https://insights.sbomify.com/CVE-2025-7555/): code-projects Voting System voters_add.php sql injection (medium 5.3)
- [CVE-2025-7556](https://insights.sbomify.com/CVE-2025-7556/): code-projects Voting System voters_edit.php sql injection (medium 5.3)
- [CVE-2025-7557](https://insights.sbomify.com/CVE-2025-7557/): code-projects Voting System voters_row.php sql injection (medium 5.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-11421 and fix it if it is affected.

What it is: CVE-2025-11421 is a medium-severity cross-site scripting vulnerability in code-projects Voting System, published on 8 Oct 2025. 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-2025-11421 exists.

Affected product: code-projects Voting 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-2025-11421/ (Markdown: https://insights.sbomify.com/CVE-2025-11421/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-11421
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-11421
- OSV: https://osv.dev/vulnerability/CVE-2025-11421

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-11421/
Summaries are generated and may contain mistakes; the official description above is the record.