> ## Documentation Index
> Fetch the complete documentation index at: https://docs.projectdiscovery.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Nuclei Templates FAQ

> Common questions and answers about Nuclei templates, including usage tips and best practices.

<Tip>For info on the Nuclei Template Editor or using templates on our cloud platform - [learn more here](/cloud/editor/overview).</Tip>

<AccordionGroup>
  <Accordion title="What are Nuclei templates?" icon="circle-info" iconType="solid">
    Nuclei [templates](http://github.com/projectdiscovery/nuclei-templates) are the core of the Nuclei project. The templates contain the actual logic that is executed in order to detect various vulnerabilities. The project consists of **several thousand** ready-to-use **[community-contributed](https://github.com/projectdiscovery/nuclei-templates/graphs/contributors)** vulnerability templates.
  </Accordion>

  <Accordion title="How can I write Nuclei templates?" icon="circle-info" iconType="solid">
    We maintain a [template guide](/templates/introduction/) for writing new and custom Nuclei templates.
  </Accordion>

  <Accordion title="How can writing Nuclei templates help me or my organization?" icon="fire-flame-curved" iconType="solid">
    Performing security assessment of an application is time-consuming. It's always better and time-saving to automate steps whenever possible. Once you've found a security vulnerability, you can prepare a Nuclei template by defining the required HTTP request to reproduce the issue, and test the same vulnerability across multiple hosts with ease. It's worth mentioning ==you write the template once and use it forever==, as you don't need to manually test that specific vulnerability any longer.

    Here are few examples from the community making use of templates to automate the security findings:

    * [https://dhiyaneshgeek.github.io/web/security/2021/02/19/exploiting-out-of-band-xxe/](https://dhiyaneshgeek.github.io/web/security/2021/02/19/exploiting-out-of-band-xxe/)
      * [https://blog.melbadry9.xyz/fuzzing/nuclei-cache-poisoning](https://blog.melbadry9.xyz/fuzzing/nuclei-cache-poisoning)
      * [https://blog.melbadry9.xyz/dangling-dns/xyz-services/ddns-worksites](https://blog.melbadry9.xyz/dangling-dns/xyz-services/ddns-worksites)
      * [https://blog.melbadry9.xyz/dangling-dns/aws/ddns-ec2-current-state](https://blog.melbadry9.xyz/dangling-dns/aws/ddns-ec2-current-state)
      * [https://projectdiscovery.io/blog/if-youre-not-writing-custom-nuclei-templates-youre-missing-out](https://projectdiscovery.io/blog/if-youre-not-writing-custom-nuclei-templates-youre-missing-out)
  </Accordion>

  <Accordion title="How do I run Nuclei templates?" icon="circle-info" iconType="solid">
    Nuclei templates can be executed using a template name or with tags, using `-templates` (`-t`) and `-tags` flag, respectively.

    ```
    nuclei -tags cve -list target_urls.txt
    ```
  </Accordion>

  <Accordion title="How can I contribute a Nuclei template?" icon="circle-info" iconType="solid">
    You are always welcome to share your templates with the community. You can either open a [GitHub issue](https://github.com/projectdiscovery/nuclei-templates/issues/new?assignees=\&labels=nuclei-template\&template=submit-template.md\&title=%5Bnuclei-template%5D+template-name) with the template details or open a GitHub [pull request](https://github.com/projectdiscovery/nuclei-templates/pulls) with your nuclei templates. If you don't have a GitHub account, you can also make use of the [discord server](https://discord.gg/projectdiscovery) to share the template with us.
  </Accordion>

  <Accordion title="I'm getting false-positive results!" icon="triangle-exclamation" iconType="solid">
    The Nuclei template project is a **community-contributed project**. The ProjectDiscovery team manually reviews templates before merging them into the project. Still, there is a possibility that some templates with weak matchers will slip through the verification. This could produce false-positive results. **Templates are only as good as their matchers.**

    If you identified templates producing false positive/negative results, here are few steps that you can follow to fix them quickly.

    <Accordion title="I found a template producing false positive or negative results, but I'm not sure if this is accurate." icon="circle-info" iconType="solid">
      Direct message us on [Twitter](https://twitter.com/pdnuclei) or [Discord](https://discord.gg/projectdiscovery) to confirm the validity of the template.
    </Accordion>

    <Accordion title="I found a template producing false positive or negative result and I don't know how to fix it." icon="circle-info" iconType="solid">
      Please open a GitHub [issue](https://github.com/projectdiscovery/nuclei-templates/issues/new?assignees=\&labels=false-positive\&template=false-positive.md\&title=%5Bfalse-positive%5D+template-name+) with details, and we will work to address the problem and update the template.
    </Accordion>

    <Accordion title="I found a template producing a false positive or negative result and I know how to fix it." icon="circle-info" iconType="solid">
      Please open a GitHub [pull request](https://github.com/projectdiscovery/nuclei-templates/pulls) with fix.
    </Accordion>
  </Accordion>

  <Accordion title="Why can't I run all Nuclei templates?" icon="triangle-exclamation" iconType="solid">
    The Nuclei templates project houses a variety of templates which perform fuzzing and other actions which may result in a DoS against the target system (see [the list here](https://github.com/projectdiscovery/nuclei-templates/blob/master/.nuclei-ignore)). To ensure  these templates are not accidentally run, they are tagged and excluded them from the default scan. These templates can be only executed when explicitly invoked using the `-itags` option.
  </Accordion>

  {" "}

  <Accordion title="Templates exist on GitHub but are not running with Nuclei?" icon="triangle-exclamation" iconType="solid">
    When you download or update Nuclei templates using the Nuclei binary, it
    downloads all the templates from the latest **release**. All templates added
    after the release exist in the [master
    branch](https://github.com/projectdiscovery/nuclei-templates) and are added to
    Nuclei when a new template release is created.
  </Accordion>
</AccordionGroup>