CVE-2026-42070 (GCVE-0-2026-42070)

Vulnerability from cvelistv5 – Published: 2026-05-28 20:28 – Updated: 2026-05-28 20:28
VLAI
Title
MantisBT: Authorization Bypass in Bugnote Editing via Issue Update API
Summary
Mantis Bug Tracker (MantisBT) is an open source issue tracker. Prior to 2.28.2, the mc_issue_update() function in MantisBT allows users having update_bug_threshold access (UPDATER, with default settings) to edit, change view state, and modify time tracking on bugnotes belonging to other users — bypassing the default DEVELOPER (level 55) threshold required by the dedicated mc_issue_note_update() function. This vulnerability is fixed in 2.28.2.
Severity
5.3 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
CWE
  • CWE-863 - Incorrect Authorization
Assigner
References
Impacted products
Vendor Product Version
mantisbt mantisbt Affected: < 2.28.2
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        }
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              "description": "CWE-863: Incorrect Authorization",
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              "type": "CWE"
            }
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      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-28T20:28:20.369Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
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          "name": "https://github.com/mantisbt/mantisbt/security/advisories/GHSA-pq86-j2c2-47f6",
          "tags": [
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        {
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          "tags": [
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          ],
          "url": "https://mantisbt.org/bugs/view.php?id=37089"
        },
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          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://mantisbt.org/bugs/view.php?id=37093"
        }
      ],
      "source": {
        "advisory": "GHSA-pq86-j2c2-47f6",
        "discovery": "UNKNOWN"
      },
      "title": "MantisBT: Authorization Bypass in Bugnote Editing via Issue Update API"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-42070",
    "datePublished": "2026-05-28T20:28:20.369Z",
    "dateReserved": "2026-04-23T19:17:30.564Z",
    "dateUpdated": "2026-05-28T20:28:20.369Z",
    "state": "PUBLISHED"
  },
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  }
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.