CVE-2026-32300: Connect CMS Improper Authorization Vulnerability

HIGH
Advisory Identifier: GHSA-qr6x-wvxr-8hm9
CVSS 8.1
CWE-639 CWE-285
Published
Advisory Summary

CVE-2026-32300 is a HIGH (CVSS 8.1) improper authorization vulnerability (CWE-639: Authorization Bypass Through User-Controlled Key) affecting Connect CMS libraries in the Packagist ecosystem. The issue involves improper authorization in the my page profile update feature allows modification of arbitrary user information. Remediation is available by upgrading affected packages to version 1.41.1, 2.41.1.

CVE-2026-32300 at a Glance

CVE Identifier CVE-2026-32300
GHSA Identifier GHSA-qr6x-wvxr-8hm9
Severity HIGH
CVSS v3.1 Base Score 8.1
CWE Classification CWE-639: Authorization Bypass Through User-Controlled Key
Affected Product Connect CMS
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 8.1

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:H/I:H/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 High (C:H)
Integrity High (I:H)
Availability None (A:N)

How to Fix CVE-2026-32300

To remediate this vulnerability, upgrade all affected Connect 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.

opensource-workshop/connect-cms fixed: 1.41.1
Upgrade opensource-workshop/connect-cms to 1.41.1
opensource-workshop/connect-cms fixed: 2.41.1
Upgrade opensource-workshop/connect-cms to 2.41.1
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 opensource-workshop/connect-cms

How to Check if You Are Affected

To determine whether your application is affected by CVE-2026-32300, inspect your project dependencies for Connect CMS:

inspect dependencies for opensource-workshop/connect-cms

Analyze the terminal output to locate any version of Connect CMS in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.41.1), 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-639: Authorization Bypass Through User-Controlled Key, where the system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data. In Connect 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

# Security Advisory — My Page Profile Update (Improper Authorization) ## Summary An improper authorization issue in the My Page profile update feature may allow modification of arbitrary user information. ## Affected Versions - 1.x series: <= 1.41.0 - 2.x series: <= 2.41.0 ## Patched Versions - 1.41.1 - 2.41.1 ## Description In part of the My Page profile update feature, another user's profile information or password could be modified. If exploited, arbitrary user accounts may be taken over. Exploitation requires that the attacker be able to reach the affected functionality as an authenticated user. Users affected by this vulnerability should update to a fixed version. ## Solution Update to the fixed version. For the 1.x series, update to 1.41.1 or later. For the 2.x series, update to 2.41.1 or later. ## Credits OpenSource WorkShops thanks **Sho Odagiri** (小田切 祥) of **GMO Cybersecurity by Ierae, Inc.** for reporting this vulnerability.

CVE-2026-32300 Affected Connect CMS Versions

2 component(s)
Fixed Versions:
1.41.12.41.1
Product / Package Ecosystem Affected Versions Fixed Version
opensource-workshop/connect-cms
Packagist
< 1.41.1
1.41.1
opensource-workshop/connect-cms
Packagist
≥ 2.0.0
< 2.41.1
2.41.1

References

Frequently Asked Questions

What is CVE-2026-32300?
CVE-2026-32300 is a security vulnerability in Connect CMS involving Improper Authorization in the My Page Profile Update Feature Allows Modification of Arbitrary User Information under CWE-639: Authorization Bypass Through User-Controlled Key.
Which Connect CMS versions are affected?
Affected versions include releases prior to 1.41.1, 2.41.1 across affected packages: opensource-workshop/connect-cms.
What version fixes CVE-2026-32300?
Upgrading to 1.41.1, 2.41.1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is opensource-workshop/connect-cms affected?
Yes, opensource-workshop/connect-cms is affected in releases prior to 1.41.1, 2.41.1. Upgrade your dependency to 1.41.1, 2.41.1 or later.
What is the CVSS score of CVE-2026-32300?
CVE-2026-32300 has a CVSS v3.1 base score of 8.1 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N.
What CWE is associated with CVE-2026-32300?
CVE-2026-32300 is classified under CWE-639: Authorization Bypass Through User-Controlled Key (The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.).
How can I check Packagist dependencies for CVE-2026-32300?
Run the dependency tree command: 'inspect dependencies for opensource-workshop/connect-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
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-qr6x-wvxr-8hm9",
  "modified" : "2026-03-25T20:46:16Z",
  "published" : "2026-03-23T20:39:10Z",
  "aliases" : [ "CVE-2026-32300" ],
  "summary" : "Connect CMS: Improper Authorization in the My Page Profile Update Feature Allows Modification of Arbitrary User Information",
  "details" : "# Security Advisory — My Page Profile Update (Improper Authorization)\n\n## Summary\n\nAn improper authorization issue in the My Page profile update feature may allow modification of arbitrary user information.\n\n## Affected Versions\n\n- 1.x series: <= 1.41.0\n- 2.x series: <= 2.41.0\n\n## Patched Versions\n\n- 1.41.1\n- 2.41.1\n\n## Description\n\nIn part of the My Page profile update feature, another user's profile information or password could be modified. If exploited, arbitrary user accounts may be taken over. Exploitation requires that the attacker be able to reach the affected functionality as an authenticated user. Users affected by this vulnerability should update to a fixed version.\n\n## Solution\n\nUpdate to the fixed version.\nFor the 1.x series, update to 1.41.1 or later.\nFor the 2.x series, update to 2.41.1 or later.\n\n## Credits\n\nOpenSource WorkShops thanks **Sho Odagiri** (小田切 祥) of **GMO Cybersecurity by Ierae, Inc.** for reporting this vulnerability.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "opensource-workshop/connect-cms"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.41.1"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 1.41.0"
    }
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "opensource-workshop/connect-cms"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "2.0.0"
      }, {
        "fixed" : "2.41.1"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 2.41.0"
    }
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/opensource-workshop/connect-cms/security/advisories/GHSA-qr6x-wvxr-8hm9"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-32300"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/opensource-workshop/connect-cms/commit/7c9951738c62a1d51b91e9956d1eb756c5d52cce"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/opensource-workshop/connect-cms"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/opensource-workshop/connect-cms/releases/tag/v1.41.1"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/opensource-workshop/connect-cms/releases/tag/v2.41.1"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-285", "CWE-639" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-03-23T20:39:10Z",
    "nvd_published_at" : "2026-03-23T22:16:27Z"
  }
}