[Ready to merge: Dec 16] - Update advisory docs for unreviewed adviso…

…ries (github#23574)

* add docs for unreviewed advisories

content/admin/configuration/managing-connections-between-your-enterprise-accounts/enabling-the-dependency-graph-and-dependabot-alerts-on-your-enterprise-account.md

@@ -37,6 +37,8 @@ For more information about these features, see "[About the dependency graph](/gi
 
 You can connect {% data variables.product.product_location %} to {% data variables.product.prodname_dotcom_the_website %} with {% data variables.product.prodname_github_connect %}. Once connected, vulnerability data is synced from the {% data variables.product.prodname_advisory_database %} to your instance once every hour. You can also choose to manually sync vulnerability data at any time. No code or information about code from {% data variables.product.product_location %} is uploaded to {% data variables.product.prodname_dotcom_the_website %}.
 
+Only {% data variables.product.company_short %}-reviewed advisories are synchronized. {% data reusables.security-advisory.link-browsing-advisory-db %}
+
 ### About generation of {% data variables.product.prodname_dependabot_alerts %}
 
 If you enable vulnerability detection, when {% data variables.product.product_location %} receives information about a vulnerability, it identifies repositories in your instance that use the affected version of the dependency and generates {% data variables.product.prodname_dependabot_alerts %}. You can choose whether or not to notify users automatically about new {% data variables.product.prodname_dependabot_alerts %}.

content/code-security/supply-chain-security/managing-vulnerabilities-in-your-projects-dependencies/about-alerts-for-vulnerable-dependencies.md

@@ -35,8 +35,13 @@ When your code depends on a package that has a security vulnerability, this vuln
 {% data variables.product.prodname_dependabot %} detects vulnerable dependencies and sends {% data variables.product.prodname_dependabot_alerts %} when:
 
 {% ifversion fpt or ghec %}
-- A new vulnerability is added to the {% data variables.product.prodname_advisory_database %}. For more information, see "[Browsing security vulnerabilities in the {% data variables.product.prodname_advisory_database %}](/github/managing-security-vulnerabilities/browsing-security-vulnerabilities-in-the-github-advisory-database)" and "[About {% data variables.product.prodname_security_advisories %}](/code-security/security-advisories/about-github-security-advisories)."{% else %}
+- A new vulnerability is added to the {% data variables.product.prodname_advisory_database %}. For more information, see "[Browsing security vulnerabilities in the {% data variables.product.prodname_advisory_database %}](/code-security/supply-chain-security/managing-vulnerabilities-in-your-projects-dependencies/browsing-security-vulnerabilities-in-the-github-advisory-database)" and "[About {% data variables.product.prodname_security_advisories %}](/code-security/security-advisories/about-github-security-advisories)."{% else %}
 - New advisory data is synchronized to {% data variables.product.product_location %} each hour from {% data variables.product.prodname_dotcom_the_website %}. {% data reusables.security-advisory.link-browsing-advisory-db %}{% endif %}
+  {% note %}
+
+  **Note:** Only advisories that have been reviewed by {% data variables.product.company_short %} will trigger {% data variables.product.prodname_dependabot_alerts %}.
+
+  {% endnote %}
 - The dependency graph for a repository changes. For example, when a contributor pushes a commit to change the packages or versions it depends on{% ifversion fpt or ghec %}, or when the code of one of the dependencies changes{% endif %}. For more information, see "[About the dependency graph](/code-security/supply-chain-security/about-the-dependency-graph)."
 
 {% data reusables.repositories.dependency-review %}

content/code-security/supply-chain-security/managing-vulnerabilities-in-your-projects-dependencies/browsing-security-vulnerabilities-in-the-github-advisory-database.md

@@ -2,6 +2,7 @@
 title: Browsing security vulnerabilities in the GitHub Advisory Database
 intro: 'The {% data variables.product.prodname_advisory_database %} allows you to browse or search for vulnerabilities that affect open source projects  on {% data variables.product.company_short %}.'
 shortTitle: Browse Advisory Database
+miniTocMaxHeadingLevel: 3
 redirect_from:
   - /github/managing-security-vulnerabilities/browsing-security-vulnerabilities-in-the-github-advisory-database
   - /code-security/supply-chain-security/browsing-security-vulnerabilities-in-the-github-advisory-database
@@ -22,13 +23,29 @@ topics:
 
 {% data reusables.repositories.a-vulnerability-is %}
 
-{% data variables.product.product_name %} will send you {% data variables.product.prodname_dependabot_alerts %} if we detect that any of the vulnerabilities from the {% data variables.product.prodname_advisory_database %} affect the packages that your repository depends on. For more information, see "[About alerts for vulnerable dependencies](/code-security/supply-chain-security/about-alerts-for-vulnerable-dependencies)."
-
 ## About the {% data variables.product.prodname_advisory_database %}
 
-The {% data variables.product.prodname_advisory_database %} contains a curated list of security vulnerabilities that have been mapped to packages tracked by the {% data variables.product.company_short %} dependency graph. {% data reusables.repositories.tracks-vulnerabilities %}
+The {% data variables.product.prodname_advisory_database %} contains a list of known security vulnerabilities, grouped in two categories: {% data variables.product.company_short %}-reviewed advisories and unreviewed advisories.
+
+{% data reusables.repositories.tracks-vulnerabilities %}
+
+### About {% data variables.product.company_short %}-reviewed advisories
+
+{% data variables.product.company_short %}-reviewed advisories are security vulnerabilities that have been mapped to packages tracked by the {% data variables.product.company_short %} dependency graph.
+
+We carefully review each advisory for validity. Each {% data variables.product.company_short %}-reviewed advisory has a full description, and contains both ecosystem and package information.
+
+If you enable {% data variables.product.prodname_dependabot_alerts %} for your repositories, you are automatically notified when a new {% data variables.product.company_short %}-reviewed advisory affects packages you depend on. For more information, see "[About alerts for vulnerable dependencies](/code-security/supply-chain-security/about-alerts-for-vulnerable-dependencies)."
 
-Each security advisory contains information about the vulnerability, including the description, severity, affected package, package ecosystem, affected versions and patched versions, impact, and optional information such as references, workarounds, and credits. In addition, advisories from the National Vulnerability Database list contain a link to the CVE record, where you can read more details about the vulnerability, its CVSS scores, and its qualitative severity level. For more information, see the "[National Vulnerability Database](https://nvd.nist.gov/)" from the National Institute of Standards and Technology.
+### About unreviewed advisories
+
+Unreviewed advisories are security vulnerabilites that we publish automatically into the {% data variables.product.prodname_advisory_database %}, directly from the National Vulnerability Database feed. 
+
+{% data variables.product.prodname_dependabot %} doesn't create {% data variables.product.prodname_dependabot_alerts %} for unreviewed advisories as this type of advisory isn't checked for validity or completion.
+
+## About security advisories
+
+Each security advisory contains information about the vulnerability, which may include the description, severity, affected package, package ecosystem, affected versions and patched versions, impact, and optional information such as references, workarounds, and credits. In addition, advisories from the National Vulnerability Database list contain a link to the CVE record, where you can read more details about the vulnerability, its CVSS scores, and its qualitative severity level. For more information, see the "[National Vulnerability Database](https://nvd.nist.gov/)" from the National Institute of Standards and Technology.
 
 The severity level is one of four possible levels defined in the "[Common Vulnerability Scoring System (CVSS), Section 5](https://www.first.org/cvss/specification-document)."
 - Low
@@ -45,6 +62,11 @@ The {% data variables.product.prodname_advisory_database %} uses the CVSS levels
 1. Navigate to https://github.com/advisories.
 2. Optionally, to filter the list, use any of the drop-down menus.
   ![Dropdown filters](/assets/images/help/security/advisory-database-dropdown-filters.png)
+   {% tip %}
+
+   **Tip:** You can use the sidebar on the left to explore  {% data variables.product.company_short %}-reviewed and unreviewed advisories separately.
+
+   {% endtip %}
 3. Click on any advisory to view details.
 
 {% note %}
@@ -63,6 +85,8 @@ You can search the database, and use qualifiers to narrow your search. For examp
 
 | Qualifier  | Example |
 | ------------- | ------------- |
+| `type:reviewed`| [**type:reviewed**](https://github.com/advisories?query=type%3Areviewed) will show {% data variables.product.company_short %}-reviewed advisories. |
+| `type:unreviewed`| [**type:unreviewed**](https://github.com/advisories?query=type%3Aunreviewed) will show unreviewed advisories. |
 | `GHSA-ID`| [**GHSA-49wp-qq6x-g2rf**](https://github.com/advisories?query=GHSA-49wp-qq6x-g2rf) will show the advisory with this {% data variables.product.prodname_advisory_database %} ID. |
 | `CVE-ID`| [**CVE-2020-28482**](https://github.com/advisories?query=CVE-2020-28482) will show the advisory with this CVE ID number. |
 | `ecosystem:ECOSYSTEM`| [**ecosystem:npm**](https://github.com/advisories?utf8=%E2%9C%93&query=ecosystem%3Anpm) will show only advisories affecting NPM packages. |
@@ -80,7 +104,7 @@ You can search the database, and use qualifiers to narrow your search. For examp
 
 ## Viewing your vulnerable repositories
 
-For any vulnerability in the {% data variables.product.prodname_advisory_database %}, you can see which of your repositories have a {% data variables.product.prodname_dependabot %} alert for that vulnerability. To see a vulnerable repository, you must have access to {% data variables.product.prodname_dependabot_alerts %} for that repository. For more information, see "[About alerts for vulnerable dependencies](/code-security/supply-chain-security/about-alerts-for-vulnerable-dependencies#access-to-dependabot-alerts)."
+For any {% data variables.product.company_short %}-reviewed advisory in the {% data variables.product.prodname_advisory_database %}, you can see which of your repositories are affected by that security vulnerability. To see a vulnerable repository, you must have access to {% data variables.product.prodname_dependabot_alerts %} for that repository. For more information, see "[About alerts for vulnerable dependencies](/code-security/supply-chain-security/about-alerts-for-vulnerable-dependencies#access-to-dependabot-alerts)."
 
 1. Navigate to https://github.com/advisories.
 2. Click an advisory.

content/developers/webhooks-and-events/webhooks/webhook-events-and-payloads.md

@@ -1197,8 +1197,9 @@ Key | Type | Description
 {% ifversion fpt or ghes or ghec %}
 ## security_advisory
 
-Activity related to a security advisory. A security advisory provides information about security-related vulnerabilities in software on GitHub. The security advisory dataset also powers the GitHub security alerts, see "[About alerts for vulnerable dependencies](/github/managing-security-vulnerabilities/about-alerts-for-vulnerable-dependencies/)."
-{% endif %}
+Activity related to a security advisory that has been reviewed by {% data variables.product.company_short %}. A {% data variables.product.company_short %}-reviewed security advisory provides information about security-related vulnerabilities in software on {% data variables.product.prodname_dotcom %}. 
+
+The security advisory dataset also powers the GitHub {% data variables.product.prodname_dependabot_alerts %}. For more information, see "[About alerts for vulnerable dependencies](/github/managing-security-vulnerabilities/about-alerts-for-vulnerable-dependencies/)."
 
 ### Availability
 
@@ -1215,6 +1216,8 @@ Key | Type | Description
 
 {{ webhookPayloadsForCurrentVersion.security_advisory.published }}
 
+{% endif %}
+
 {% ifversion fpt or ghec %}
 ## sponsorship