MantisBT CVE-2026-52882
MEDIUMSeverity by source
Network-reachable, low-complexity bypass requiring an authenticated low-privilege account (PR:L); impact is integrity-only via version field manipulation with no confidentiality or availability consequence.
Estimated by vuln.today — no official severity rating has been published for this CVE yet.
Lifecycle Timeline
2DescriptionCVE.org
Impact
Users below _report_issues_for_unreleased_versions_threshold_ can assign unreleased product versions.
Patches
- https://github.com/mantisbt/mantisbt/commit/17072d4c322c85f7135ebec3417a6d90b525d12f
Workarounds
None
Resources
- https://mantisbt.org/bugs/view.php?id=37065
Credits
MantisBT thanks Vishal Shukla for discovering and responsibly reporting the issue.
AnalysisAI
Authorization bypass in MantisBT's SOAP API, REST API, and web-based bug update interface allows authenticated lower-privileged users to assign unreleased product versions to issues, circumventing the report_issues_for_unreleased_versions_threshold access control. All three issue-update pathways in versions 2.28.3 and earlier were unprotected: the SOAP handler (mc_issue_api.php), the web form (bug_update.php), and the REST command layer (IssueAddCommand.php). …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a valid MantisBT account with a privilege level below the `report_issues_for_unreleased_versions_threshold` configuration setting - meaning authenticated but lower-privileged users, not unauthenticated attackers. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | No CVSS vector or EPSS score is present in the input data; the following assessment is inferred from the description, CWE, and patch diff. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An authenticated MantisBT user with a privilege level below `report_issues_for_unreleased_versions_threshold` sends an issue-update request to the SOAP or REST API specifying an unreleased product version in the version field. On unpatched instances (2.28.3 and earlier), the server performs no authorization check against the threshold configuration and records the unreleased version assignment. … |
| Remediation | Upgrade to MantisBT version 2.28.4 via Composer (`composer require mantisbt/mantisbt:^2.28.4`); this version introduces server-side authorization checks in the SOAP handler (`api/soap/mc_issue_api.php`), the web UI update script (`bug_update.php`), and the REST command layer (`core/commands/IssueAddCommand.php`). … Detailed patch versions, workarounds, and compensating controls in full report. |
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External POC / Exploit Code
Leaving vuln.today