CVE-2020-29604: Mantisbt/mantisbt MantisBT Missing Authorization Access Check Vulnerability

MODERATE
Advisory Identifier: GHSA-f38c-wxp6-8xjv
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CVSS 6.5
CWE-862
Published
Advisory Summary

CVE-2020-29604 is a MODERATE (CVSS 6.5) mantisbt missing authorization access check vulnerability (CWE-862: Missing Authorization) affecting Mantisbt/mantisbt libraries in the Packagist ecosystem. The issue involves mantisbt missing authorization access check in bug_actiongroup.php. Remediation is available by upgrading affected packages to version 2.24.4.

CVE-2020-29604 at a Glance

CVE Identifier CVE-2020-29604
GHSA Identifier GHSA-f38c-wxp6-8xjv
Severity MODERATE
CVSS v3.1 Base Score 6.5
CWE Classification CWE-862: Missing Authorization
Affected Product Mantisbt/mantisbt
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 6.5

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:N/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 None (I:N)
Availability None (A:N)

How to Fix CVE-2020-29604

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

mantisbt/mantisbt fixed: 2.24.4 
Upgrade mantisbt/mantisbt to 2.24.4
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 mantisbt/mantisbt

How to Check if You Are Affected

To determine whether your application is affected by CVE-2020-29604, inspect your project dependencies for Mantisbt/mantisbt:

inspect dependencies for mantisbt/mantisbt

Analyze the terminal output to locate any version of Mantisbt/mantisbt in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.24.4), 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 Mantisbt/mantisbt, 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

An issue was discovered in MantisBT before 2.24.4. A missing access check in bug_actiongroup.php allows an attacker (with rights to create new issues) to use the COPY group action to create a clone, including all bugnotes and attachments, of any private issue (i.e., one having Private view status, or belonging to a private Project) via the bug_arr[] parameter. This provides full access to potentially confidential information.

CVE-2020-29604 Affected Mantisbt/mantisbt Versions

1 component(s)
Fixed Versions:
2.24.4
Product / Package Ecosystem Affected Versions Fixed Version
mantisbt/mantisbt
 Packagist
< 2.24.4
2.24.4

References

NVD — CVE-2020-29604 NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-29604
Security Fix Commit FIX COMMIT
https://github.com/mantisbt/mantisbt/commit/b2da7352b0ad31fa5f925eaacb4b2b96a6cec8e8
Mantisbt/mantisbt Source Repository REPOSITORY
https://github.com/mantisbt/mantisbt
mantisbt.org/bugs/view.php WEB
https://mantisbt.org/bugs/view.php?id=27357
mantisbt.org/bugs/view.php WEB
https://mantisbt.org/bugs/view.php?id=27728

Frequently Asked Questions

What is CVE-2020-29604?
CVE-2020-29604 is a security vulnerability in Mantisbt/mantisbt involving MantisBT Missing Authorization access check in bug_actiongroup.php under CWE-862: Missing Authorization.
Which Mantisbt/mantisbt versions are affected?
Affected versions include releases prior to 2.24.4 across affected packages: mantisbt/mantisbt.
What version fixes CVE-2020-29604?
Upgrading to 2.24.4 (or the latest patched release for your respective branch) resolves the vulnerability.
Is mantisbt/mantisbt affected?
Yes, mantisbt/mantisbt is affected in releases prior to 2.24.4. Upgrade your dependency to 2.24.4 or later.
What is the CVSS score of CVE-2020-29604?
CVE-2020-29604 has a CVSS v3.1 base score of 6.5 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
What CWE is associated with CVE-2020-29604?
CVE-2020-29604 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-2020-29604?
Run the dependency tree command: 'inspect dependencies for mantisbt/mantisbt'. 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-f38c-wxp6-8xjv",
  "modified" : "2025-05-30T14:01:55Z",
  "published" : "2022-05-24T17:40:35Z",
  "aliases" : [ "CVE-2020-29604" ],
  "summary" : "MantisBT Missing Authorization access check in bug_actiongroup.php",
  "details" : "An issue was discovered in MantisBT before 2.24.4. A missing access check in bug_actiongroup.php allows an attacker (with rights to create new issues) to use the COPY group action to create a clone, including all bugnotes and attachments, of any private issue (i.e., one having Private view status, or belonging to a private Project) via the bug_arr[] parameter. This provides full access to potentially confidential information.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "mantisbt/mantisbt"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2.24.4"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2020-29604"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/mantisbt/mantisbt/commit/b2da7352b0ad31fa5f925eaacb4b2b96a6cec8e8"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/mantisbt/mantisbt"
  }, {
    "type" : "WEB",
    "url" : "https://mantisbt.org/bugs/view.php?id=27357"
  }, {
    "type" : "WEB",
    "url" : "https://mantisbt.org/bugs/view.php?id=27728"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-862" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-05-30T14:01:55Z",
    "nvd_published_at" : "2021-01-29T07:15:00Z"
  }
}