# CVE-2024-1111: SourceCodester QR Code Login System add-user.php cross site scripting

> Remote attackers can inject malicious scripts via the qr-code argument in add-user.php, potentially compromising user sessions.

- **Severity:** Medium 4.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 31 Jan 2024
- **Updated:** 29 May 2025
- **Also known as:** GHSA-9m6f-83hx-8wwr

## What is CVE-2024-1111?

CVE-2024-1111 is a medium-severity cross-site scripting vulnerability in SourceCodester QR Code Login System, published on 31 Jan 2024. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

A vulnerability, which was classified as problematic, has been found in SourceCodester QR Code Login System 1.0. Affected by this issue is some unknown functionality of the file add-user.php. The manipulation of the argument qr-code leads to cross site scripting. The attack may be launched remotely. VDB-252470 is the identifier assigned to this vulnerability.

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

## Which versions are affected by CVE-2024-1111?

It affects 1 product.


Products: Rems Qr Code Login System.

## How do I fix CVE-2024-1111?

No fix has been published for CVE-2024-1111 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-1111 being exploited?

There is no known exploitation of CVE-2024-1111 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-1111 and fix it if it is affected.

What it is: CVE-2024-1111 is a medium-severity cross-site scripting vulnerability in SourceCodester QR Code Login System, published on 31 Jan 2024. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2024-1111 in the wild and no public exploit code.

Affected product: SourceCodester QR Code Login 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-2024-1111/ (Markdown: https://insights.sbomify.com/CVE-2024-1111/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-1111
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-1111
- OSV: https://osv.dev/vulnerability/CVE-2024-1111

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From sbomify Insights: https://insights.sbomify.com/CVE-2024-1111/
Summaries are generated and may contain mistakes; the official description above is the record.