CVE-2026-44657 (GCVE-0-2026-44657)

Vulnerability from cvelistv5 – Published: 2026-05-28 20:25 – Updated: 2026-05-28 20:25
VLAI
Title
MantisBT: Stored XSS in File Download
Summary
Mantis Bug Tracker (MantisBT) is an open source issue tracker. Prior to 2.28.2, using show_inline=1 parameter and a valid file_show_inline_token CSRF token on file_download.php, an attacker can execute code by uploading a crafted XHTML attachment referencing a JavaScript attachment. This vulnerability is fixed in 2.28.2.
Severity
7.5 (High)
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N
CWE
  • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
Impacted products
Vendor Product Version
mantisbt mantisbt Affected: < 2.28.2
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          "versions": [
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        }
      ],
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            "baseSeverity": "HIGH",
            "privilegesRequired": "LOW",
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            "subConfidentialityImpact": "NONE",
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            "userInteraction": "PASSIVE",
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          }
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      "problemTypes": [
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              "description": "CWE-79: Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
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              "type": "CWE"
            }
          ]
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      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-28T20:25:26.816Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/mantisbt/mantisbt/security/advisories/GHSA-p6fr-rxq7-xcg8",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/mantisbt/mantisbt/security/advisories/GHSA-p6fr-rxq7-xcg8"
        },
        {
          "name": "https://github.com/mantisbt/mantisbt/security/advisories/GHSA-9c3j-xm6v-j7j3",
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          "url": "https://github.com/mantisbt/mantisbt/security/advisories/GHSA-9c3j-xm6v-j7j3"
        },
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          "tags": [
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          "url": "https://github.com/mantisbt/mantisbt/commit/26647b2e68ba30b9d7987d4e03d7a16416684bc2"
        },
        {
          "name": "https://mantisbt.org/bugs/view.php?id=37020",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://mantisbt.org/bugs/view.php?id=37020"
        }
      ],
      "source": {
        "advisory": "GHSA-p6fr-rxq7-xcg8",
        "discovery": "UNKNOWN"
      },
      "title": "MantisBT: Stored XSS in File Download"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-44657",
    "datePublished": "2026-05-28T20:25:26.816Z",
    "dateReserved": "2026-05-07T16:20:08.658Z",
    "dateUpdated": "2026-05-28T20:25:26.816Z",
    "state": "PUBLISHED"
  },
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  "dataVersion": "5.2",
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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.

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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.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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