NIST 800-53 r5 · Controls catalogue · Family AC
AC-22Publicly Accessible Content
Designate individuals authorized to make information publicly accessible; Train authorized individuals to ensure that publicly accessible information does not contain nonpublic information; Review the proposed content of information prior to posting onto the publicly accessible system to ensure that nonpublic information is not included; and Review the content on the publicly accessible system for nonpublic information {{ insert: param, ac-22_odp }} and remove such information, if discovered.
Last updated: 22 August 2026 07:11 UTC
Implementations targeting this control (0)
- No implementations targeting this control yet.
ATT&CK techniques this control mitigates (0)
- No ATT&CK techniques mapped to this control yet.
Weaknesses this control addresses (8)AI-assisted
CWEs ranked by how often they appear in real CVEs. The rationale describes how this control reduces exploitability of each weakness class.
| CWE | Name | CVEs | Why this control addresses it |
|---|---|---|---|
CWE-200 | Exposure of Sensitive Information to an Unauthorized Actor | 11,000+ | Review and removal of nonpublic information from publicly accessible systems directly prevents exposure of sensitive data to unauthorized actors. |
CWE-284 | Improper Access Control | 6,900+ | Designating authorized individuals and mandating pre/post-publication reviews enforces access controls on who can publish content publicly. |
CWE-285 | Improper Authorization | 1,500+ | Authorization checks via training and content reviews ensure only approved information is released to public systems. |
CWE-668 | Exposure of Resource to Wrong Sphere | 800+ | The control ensures information resources are not exposed to the incorrect (public) sphere through review and authorization. |
CWE-552 | Files or Directories Accessible to External Parties | 500+ | Controls on authorized publication limit files and directories with nonpublic data from becoming accessible to external parties. |
CWE-497 | Exposure of Sensitive System Information to an Unauthorized Control Sphere | 300+ | Ongoing reviews detect and remove sensitive system information before it reaches publicly accessible systems. |
CWE-359 | Exposure of Private Personal Information to an Unauthorized Actor | 200+ | Preventing nonpublic personal information from public posting reduces unauthorized exposure of private personal data. |
CWE-538 | Insertion of Sensitive Information into Externally-Accessible File or Directory | 98 | Pre- and post-publication reviews prevent insertion of sensitive information into externally-accessible public locations. |
Top CVEs where this control is the strongest mitigation
| CVE | Risk | CVSS | EPSS | Match |
|---|---|---|---|---|
| No CVEs annotated to this control yet — the per-CVE backfill is in progress. | ||||