FKIE_CVE-2026-6428

Vulnerability from fkie_nvd - Published: 2026-06-13 17:16 - Updated: 2026-07-23 09:10
Severity
7.6 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L
Summary
SQL Injection in reports/catalogue_out.pl in Koha Community Koha through 22.11.37, 23.x, 24.x before 24.11.16, 25.05.x before 25.05.11, 25.11.x before 25.11.05, 26.05.x before 26.05.01, and 26.11.x before 26.11.00 allows an authenticated staff user with the Reports module flag to read arbitrary data from the Koha application database via the Filter URL parameter when the Criteria parameter matches /branchcode/. The vulnerable sink in sub calculate concatenates the unmodified Filter request parameter directly into a LIKE clause of the auxiliary $strsth2 statement and executes it via DBI without bound parameters: my $f = @$filters[0]; $f =~ s/\*/%/g; $strsth2 .= " AND $column LIKE '$f' "; This enables error-based SQL injection (e.g., via EXTRACTVALUE) and full read access to sensitive tables including borrowers (password hashes, 2FA secrets, PII), borrower_password_recovery, api_keys, and sessions. Proof of concept (error-based, single request): GET /cgi-bin/koha/reports/catalogue_out.pl?do_it=1&output=screen&Limit=10&Criteria=branchcode&Filter=x'+AND+EXTRACTVALUE(1,CONCAT(0x7e,VERSION(),0x7c,USER(),0x7c,DATABASE(),0x7e))--+- Cookie: CGISESSID=<LIBRARIAN_SESSION> The response body contains the DBI exception leaking the MariaDB version, database user, client IP, and database name, after which arbitrary data can be paged out using LIMIT n,1 / SUBSTRING(...). The vulnerable sink was introduced in commit 6bb77ae3e4 (2008-07-09); CVE-2015-4633 patched the same class in sibling files but did not generalise the fix to reports/catalogue_out.pl. Fixed in Koha 22.11.38, 24.11.16, 25.05.11, 25.11.05, 26.05.01, and 26.11.00 by replacing the raw concatenation with a parameterised placeholder.
References
309f9ea4-e3e9-4c6c-b79d-e8eb01244f2chttps://bugs.koha-community.org/bugzilla3/attachment.cgi?id=199539
309f9ea4-e3e9-4c6c-b79d-e8eb01244f2chttps://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=42361
309f9ea4-e3e9-4c6c-b79d-e8eb01244f2chttps://koha-community.org/security-releases/
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "collectionURL": "https://koha-community.org/",
          "defaultStatus": "unaffected",
          "product": "Koha",
          "programFiles": [
            "reports/catalogue_out.pl"
          ],
          "repo": "https://gitlab.com/koha-community/Koha",
          "vendor": "Koha Community",
          "versions": [
            {
              "lessThan": "22.11.38",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "23.11.15",
              "status": "affected",
              "version": "23.05.00",
              "versionType": "semver"
            },
            {
              "lessThan": "24.11.16",
              "status": "affected",
              "version": "24.05.00",
              "versionType": "semver"
            },
            {
              "lessThan": "25.05.11",
              "status": "affected",
              "version": "25.05.00",
              "versionType": "semver"
            },
            {
              "lessThan": "25.11.05",
              "status": "affected",
              "version": "25.11.00",
              "versionType": "semver"
            },
            {
              "lessThan": "26.05.01",
              "status": "affected",
              "version": "26.05.00",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "SQL Injection in reports/catalogue_out.pl in Koha Community Koha through 22.11.37, 23.x, 24.x before 24.11.16, 25.05.x before 25.05.11, 25.11.x before 25.11.05, 26.05.x before 26.05.01, and 26.11.x before 26.11.00 allows an authenticated staff user with the Reports module flag to read arbitrary data from the Koha application database via the Filter URL parameter when the Criteria parameter matches /branchcode/.\n\n\n\nThe vulnerable sink in sub calculate concatenates the unmodified Filter request parameter directly into a LIKE clause of the auxiliary $strsth2 statement and executes it via DBI without bound parameters:\n\n\n\nmy $f = @$filters[0];\n$f =~ s/\\*/%/g;\n$strsth2 .= \" AND $column LIKE \u0027$f\u0027 \";\n\n\n\nThis enables error-based SQL injection (e.g., via EXTRACTVALUE) and full read access to sensitive tables including borrowers (password hashes, 2FA secrets, PII), borrower_password_recovery, api_keys, and sessions.\n\n\n\nProof of concept (error-based, single request):\n\n\n\nGET /cgi-bin/koha/reports/catalogue_out.pl?do_it=1\u0026output=screen\u0026Limit=10\u0026Criteria=branchcode\u0026Filter=x\u0027+AND+EXTRACTVALUE(1,CONCAT(0x7e,VERSION(),0x7c,USER(),0x7c,DATABASE(),0x7e))--+-\nCookie: CGISESSID=\u003cLIBRARIAN_SESSION\u003e\n\n\n\nThe response body contains the DBI exception leaking the MariaDB version, database user, client IP, and database name, after which arbitrary data can be paged out using LIMIT n,1 / SUBSTRING(...).\n\n\n\nThe vulnerable sink was introduced in commit 6bb77ae3e4 (2008-07-09); CVE-2015-4633 patched the same class in sibling files but did not generalise the fix to reports/catalogue_out.pl. Fixed in Koha 22.11.38, 24.11.16, 25.05.11, 25.11.05, 26.05.01, and 26.11.00 by replacing the raw concatenation with a parameterised placeholder."
    },
    {
      "lang": "es",
      "value": "Inyecci\u00f3n SQL en reports/catalogue_out.pl en Koha Community Koha hasta 22.11.37, 23.x, 24.x antes de 24.11.16, 25.05.x antes de 25.05.11, 25.11.x antes de 25.11.05, 26.05.x antes de 26.05.01, y 26.11.x antes de 26.11.00 permite a un usuario de personal autenticado con el indicador del m\u00f3dulo de Informes leer datos arbitrarios de la base de datos de la aplicaci\u00f3n Koha a trav\u00e9s del par\u00e1metro URL Filter cuando el par\u00e1metro Criteria coincide con /branchcode/.\n\nEl sumidero vulnerable en la subrutina calculate concatena el par\u00e1metro de solicitud Filter sin modificar directamente en una cl\u00e1usula LIKE de la sentencia auxiliar $strsth2 y lo ejecuta a trav\u00e9s de DBI sin par\u00e1metros vinculados:\n\nmy $f = @$filters[0];\n$f =~ s/\\*/%/g;\n$strsth2 .= \" AND $column LIKE \u0027$f\u0027 \";\n\nEsto permite la inyecci\u00f3n SQL basada en errores (por ejemplo, a trav\u00e9s de EXTRACTVALUE) y acceso de lectura completo a tablas sensibles incluyendo borrowers (hashes de contrase\u00f1as, secretos 2FA, PII), borrower_password_recovery, api_keys, y sessions.\n\nPrueba de concepto (basado en errores, solicitud \u00fanica):\n\nGET /cgi-bin/koha/reports/catalogue_out.pl?do_it=1\u0026output=screen\u0026Limit=10\u0026Criteria=branchcode\u0026Filter=x\u0027+AND+EXTRACTVALUE(1,CONCAT(0x7e,VERSION(),0x7c,USER(),0x7c,DATABASE(),0x7e))--+-\nCookie: CGISESSID=\u003cLIBRARIAN_SESSION\u003e\n\nEl cuerpo de la respuesta contiene la excepci\u00f3n DBI filtrando la versi\u00f3n de MariaDB, el usuario de la base de datos, la IP del cliente, y el nombre de la base de datos, despu\u00e9s de lo cual se pueden paginar datos arbitrarios usando LIMIT n,1 / SUBSTRING(...).\n\nEl sumidero vulnerable fue introducido en el commit 6bb77ae3e4 (2008-07-09); CVE-2015-4633 parche\u00f3 la misma clase en archivos hermanos pero no generaliz\u00f3 la correcci\u00f3n a reports/catalogue_out.pl. Corregido en Koha 22.11.38, 24.11.16, 25.05.11, 25.11.05, 26.05.01, y 26.11.00 reemplazando la concatenaci\u00f3n cruda con un marcador de posici\u00f3n parametrizado."
    }
  ],
  "id": "CVE-2026-6428",
  "lastModified": "2026-07-23T09:10:00.113",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "SINGLE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 7.5,
          "confidentialityImpact": "COMPLETE",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:L/Au:S/C:C/I:N/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 8.0,
        "impactScore": 7.8,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c",
        "type": "Secondary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 7.6,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 4.7,
        "source": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c",
        "type": "Secondary"
      }
    ],
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "YES",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "PRESENT",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 5.6,
          "baseSeverity": "MEDIUM",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "PROOF_OF_CONCEPT",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "LOW",
          "providerUrgency": "AMBER",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "NONE",
          "valueDensity": "CONCENTRATED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:X/V:C/RE:X/U:Amber",
          "version": "4.0",
          "vulnAvailabilityImpact": "LOW",
          "vulnConfidentialityImpact": "HIGH",
          "vulnIntegrityImpact": "LOW",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-6428",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-06-15T17:19:10.550362Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-06-13T17:16:17.190",
  "references": [
    {
      "source": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c",
      "url": "https://bugs.koha-community.org/bugzilla3/attachment.cgi?id=199539"
    },
    {
      "source": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c",
      "url": "https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=42361"
    },
    {
      "source": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c",
      "url": "https://koha-community.org/security-releases/"
    }
  ],
  "sourceIdentifier": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-89"
        }
      ],
      "source": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c",
      "type": "Secondary"
    }
  ]
}



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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

Author Source Type Date Other

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.