CVE-2026-33887: Statamic/cms Statamic Allows Unauthorized Content Access Vulnerability

MODERATE
Advisory Identifier: GHSA-4hp7-3wxg-cv9q
Share
CVSS 5.4
CWE-862
Published
Advisory Summary

CVE-2026-33887 is a MODERATE (CVSS 5.4) statamic allows unauthorized content access vulnerability (CWE-862: Missing Authorization) affecting Statamic/cms libraries in the Packagist ecosystem. The issue involves statamic allows unauthorized content access through missing authorization in its revision controllers. Remediation is available by upgrading affected packages to version 5.73.16, 6.7.2.

CVE-2026-33887 at a Glance

CVE Identifier CVE-2026-33887
GHSA Identifier GHSA-4hp7-3wxg-cv9q
Severity MODERATE
CVSS v3.1 Base Score 5.4
CWE Classification CWE-862: Missing Authorization
Affected Product Statamic/cms
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 5.4

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality Low (C:L)
Integrity Low (I:L)
Availability None (A:N)

How to Fix CVE-2026-33887

To remediate this vulnerability, upgrade all affected Statamic/cms dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

statamic/cms fixed: 5.73.16 
Upgrade statamic/cms to 5.73.16
statamic/cms fixed: 6.7.2 
Upgrade statamic/cms to 6.7.2
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for statamic/cms

How to Check if You Are Affected

To determine whether your application is affected by CVE-2026-33887, inspect your project dependencies for Statamic/cms:

inspect dependencies for statamic/cms

Analyze the terminal output to locate any version of Statamic/cms in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 5.73.16), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-862: Missing Authorization, where the product does not perform an authorization check when an actor attempts to access a resource or perform an action. In Statamic/cms, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

### Impact Authenticated Control Panel users could view entry revisions for any collection with revisions enabled, regardless of whether they had the required collection permissions. This bypasses the authorization checks that the main entry controllers enforce, exposing entry field values and blueprint data. Users could also create entry revisions without edit permission, though this only snapshots the existing content state and does not affect published content. ### Patches This has been fixed in 5.73.16 and 6.7.2.

CVE-2026-33887 Affected Statamic/cms Versions

2 component(s)
Fixed Versions:
5.73.166.7.2
Product / Package Ecosystem Affected Versions Fixed Version
statamic/cms
 Packagist
< 5.73.16
5.73.16
statamic/cms
 Packagist
≥ 6.0.0-alpha.1
< 6.7.2
6.7.2

References

GitHub Advisory / Wiki ADVISORY
https://github.com/statamic/cms/security/advisories/GHSA-4hp7-3wxg-cv9q
NVD — CVE-2026-33887 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-33887
Statamic/cms Source Repository REPOSITORY
https://github.com/statamic/cms

Frequently Asked Questions

What is CVE-2026-33887?
CVE-2026-33887 is a security vulnerability in Statamic/cms involving Statamic allows unauthorized content access through missing authorization in its revision controllers under CWE-862: Missing Authorization.
Which Statamic/cms versions are affected?
Affected versions include releases prior to 5.73.16, 6.7.2 across affected packages: statamic/cms.
What version fixes CVE-2026-33887?
Upgrading to 5.73.16, 6.7.2 (or the latest patched release for your respective branch) resolves the vulnerability.
Is statamic/cms affected?
Yes, statamic/cms is affected in releases prior to 5.73.16, 6.7.2. Upgrade your dependency to 5.73.16, 6.7.2 or later.
What is the CVSS score of CVE-2026-33887?
CVE-2026-33887 has a CVSS v3.1 base score of 5.4 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N.
What CWE is associated with CVE-2026-33887?
CVE-2026-33887 is classified under CWE-862: Missing Authorization (The product does not perform an authorization check when an actor attempts to access a resource or perform an action.).
How can I check Packagist dependencies for CVE-2026-33887?
Run the dependency tree command: 'inspect dependencies for statamic/cms'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-4hp7-3wxg-cv9q",
  "modified" : "2026-03-27T21:50:44Z",
  "published" : "2026-03-26T19:07:23Z",
  "aliases" : [ "CVE-2026-33887" ],
  "summary" : "Statamic allows unauthorized content access through missing authorization in its revision controllers ",
  "details" : "### Impact\nAuthenticated Control Panel users could view entry revisions for any collection with revisions enabled, regardless of whether they had the required collection permissions. This bypasses the authorization checks that the main entry controllers enforce, exposing entry field values and blueprint data.\n\nUsers could also create entry revisions without edit permission, though this only snapshots the existing content state and does not affect published content.\n\n### Patches\nThis has been fixed in 5.73.16 and 6.7.2.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "statamic/cms"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "5.73.16"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "statamic/cms"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "6.0.0-alpha.1"
      }, {
        "fixed" : "6.7.2"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/statamic/cms/security/advisories/GHSA-4hp7-3wxg-cv9q"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-33887"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/statamic/cms"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-862" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-03-26T19:07:23Z",
    "nvd_published_at" : "2026-03-27T21:17:25Z"
  }
}