# CVE-2026-1421: code-projects Online Examination System Add Pages cross site scripting

> Remote attackers can inject malicious scripts into the Add Pages component of the Online Examination System, potentially compromising user sessions or 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:** 26 Jan 2026
- **Updated:** 23 Feb 2026
- **Also known as:** GHSA-f48h-x82c-69jw

## What is CVE-2026-1421?

CVE-2026-1421 is a medium-severity cross-site scripting vulnerability in code-projects Online Examination System, published on 26 Jan 2026. 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 vulnerability has been found in code-projects Online Examination System 1.0. Affected is an unknown function of the component Add Pages. Such manipulation leads to cross site scripting. The attack can be executed remotely. The exploit has been disclosed to the public 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-2026-1421?

It affects 1 product.


Products: Fabian Online Examination System.

## How do I fix CVE-2026-1421?

No fix has been published for CVE-2026-1421 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-1421 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-1421 exists.

## Other vulnerabilities in code-projects Online Examination System

- [CVE-2026-2173](https://insights.sbomify.com/CVE-2026-2173/): code-projects Online Examination System login.php sql injection (medium 6.9)
- [CVE-2026-1422](https://insights.sbomify.com/CVE-2026-1422/): code-projects Online Examination System Login Page index.php sql injection (medium 6.9)
- [CVE-2026-1423](https://insights.sbomify.com/CVE-2026-1423/): code-projects Online Examination System admin_pic.php unrestricted upload (medium 5.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-1421 and fix it if it is affected.

What it is: CVE-2026-1421 is a medium-severity cross-site scripting vulnerability in code-projects Online Examination System, published on 26 Jan 2026. 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-2026-1421 exists.

Affected product: code-projects Online Examination 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-2026-1421/ (Markdown: https://insights.sbomify.com/CVE-2026-1421/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-1421
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-1421
- OSV: https://osv.dev/vulnerability/CVE-2026-1421

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-1421/
Summaries are generated and may contain mistakes; the official description above is the record.