CVE-2026-49280: MantisBT REST API Unauthorized Issue Status Vulnerability

MODERATE
Advisory Identifier: GHSA-m7ph-9558-mrx3
Share
CWE-862
Published
Advisory Summary

CVE-2026-49280 is a MODERATE rest api unauthorized issue status vulnerability (CWE-862: Missing Authorization) affecting MantisBT libraries in the Packagist ecosystem. The issue involves rest api unauthorized issue status change. Remediation is available by upgrading affected packages to version 2.28.4.

CVE-2026-49280 at a Glance

CVE Identifier CVE-2026-49280
GHSA Identifier GHSA-m7ph-9558-mrx3
Severity MODERATE
CVSS v3.1 Base Score N/A
CWE Classification CWE-862: Missing Authorization
Affected Product MantisBT
Package Ecosystem Packagist
Published Date
Last Updated

How to Fix CVE-2026-49280

To remediate this vulnerability, upgrade all affected 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: 2.28.4 
Upgrade mantisbt/mantisbt to 2.28.4
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-2026-49280, inspect your project dependencies for MantisBT:

inspect dependencies for mantisbt/mantisbt

Analyze the terminal output to locate any version of MantisBT in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.28.4), 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, 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

A MantisBT user having *$g_update_bug_threshold* (UPDATER by default) can change an Issue's Status via REST and SOAP API, even if the *$g_set_status_threshold* config is set to a higher level (DEVELOPER by default). ### Impact Unauthorized change in Issue workflow. ### Patches https://github.com/mantisbt/mantisbt/releases/tag/release-2.28.4 ### Workarounds None ### Resources - https://mantisbt.org/bugs/view.php?id=37181 ### Credits Mamdouh Mahfouz (@mamdouhmahfouz)

CVE-2026-49280 Affected MantisBT Versions

1 component(s)
Fixed Versions:
2.28.4
Product / Package Ecosystem Affected Versions Fixed Version
mantisbt/mantisbt
 Packagist
≥ 2.8.0
< 2.28.4
2.28.4

References

GitHub Advisory / Wiki ADVISORY
https://github.com/mantisbt/mantisbt/security/advisories/GHSA-m7ph-9558-mrx3
Security Fix Commit FIX COMMIT
https://github.com/mantisbt/mantisbt/commit/2d3a5537605487a1ec5178aba9fe9b5623b6a4e0
MantisBT Source Repository REPOSITORY
https://github.com/mantisbt/mantisbt
MantisBT Security Information SECURITY
https://mantisbt.org/bugs/view.php?id=37181

Frequently Asked Questions

What is CVE-2026-49280?
CVE-2026-49280 is a security vulnerability in MantisBT involving REST API unauthorized Issue status change under CWE-862: Missing Authorization.
Which MantisBT versions are affected?
Affected versions include releases prior to 2.28.4 across affected packages: mantisbt/mantisbt.
What version fixes CVE-2026-49280?
Upgrading to 2.28.4 (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 2.28.4. Upgrade your dependency to 2.28.4 or later.
What CWE is associated with CVE-2026-49280?
CVE-2026-49280 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-2026-49280?
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-m7ph-9558-mrx3",
  "modified" : "2026-07-15T17:02:12Z",
  "published" : "2026-07-15T17:02:12Z",
  "aliases" : [ "CVE-2026-49280" ],
  "summary" : "MantisBT: REST API unauthorized Issue status change",
  "details" : "A MantisBT user having *$g_update_bug_threshold* (UPDATER by default) can change an Issue's Status via REST and SOAP API, even if the *$g_set_status_threshold* config is set to a higher level (DEVELOPER by default).\n\n### Impact\nUnauthorized change in Issue workflow.\n\n### Patches\nhttps://github.com/mantisbt/mantisbt/releases/tag/release-2.28.4\n\n### Workarounds\nNone\n\n### Resources\n- https://mantisbt.org/bugs/view.php?id=37181\n\n### Credits\nMamdouh Mahfouz (@mamdouhmahfouz)",
  "severity" : [ {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "mantisbt/mantisbt"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "2.8.0"
      }, {
        "fixed" : "2.28.4"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 2.28.3"
    }
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/mantisbt/mantisbt/security/advisories/GHSA-m7ph-9558-mrx3"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/mantisbt/mantisbt/commit/2d3a5537605487a1ec5178aba9fe9b5623b6a4e0"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/mantisbt/mantisbt"
  }, {
    "type" : "WEB",
    "url" : "https://mantisbt.org/bugs/view.php?id=37181"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-862" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-07-15T17:02:12Z",
    "nvd_published_at" : null
  }
}