CVE-2025-4295 (GCVE-0-2025-4295)

Vulnerability from cvelistv5 – Published: 2025-07-22 13:58 – Updated: 2026-06-05 17:24 Exclusively Hosted Service
VLAI
Title
Host Header Injection in HotelRunner's B2B
Summary
Improper Validation of Certificate with Host Mismatch vulnerability in HotelRunner B2B allows HTTP Response Splitting. This issue affects B2B: before 04.06.2025.
Severity
4.6 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-297 - Improper Validation of Certificate with Host Mismatch
Assigner
References
Impacted products
Vendor Product Version
HotelRunner B2B Affected: 0 , < 04.06.2025 (custom)
Create a notification for this product.
Credits
Berat ARSLAN Priente Software Inc.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-4295",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-07-22T14:07:45.966946Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-07-22T14:08:09.870Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "B2B",
          "vendor": "HotelRunner",
          "versions": [
            {
              "lessThan": "04.06.2025",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Berat ARSLAN"
        },
        {
          "lang": "en",
          "type": "finder",
          "value": "Priente Software Inc."
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "Improper Validation of Certificate with Host Mismatch vulnerability in HotelRunner B2B allows HTTP Response Splitting.\u003cp\u003eThis issue affects B2B: before 04.06.2025.\u003c/p\u003e"
            }
          ],
          "value": "Improper Validation of Certificate with Host Mismatch vulnerability in HotelRunner B2B allows HTTP Response Splitting.\n\nThis issue affects B2B: before 04.06.2025."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-34",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-34 HTTP Response Splitting"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 4.6,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-297",
              "description": "CWE-297 Improper Validation of Certificate with Host Mismatch",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-05T17:24:53.165Z",
        "orgId": "ca940d4e-fea4-4aa2-9a58-591a58b1ce21",
        "shortName": "TR-CERT"
      },
      "references": [
        {
          "tags": [
            "government-resource",
            "broken-link"
          ],
          "url": "https://www.usom.gov.tr/bildirim/tr-25-0169"
        },
        {
          "tags": [
            "government-resource"
          ],
          "url": "https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-25-0169"
        }
      ],
      "source": {
        "advisory": "TR-25-0169",
        "defect": [
          "TR-25-0169"
        ],
        "discovery": "UNKNOWN"
      },
      "tags": [
        "exclusively-hosted-service"
      ],
      "title": "Host Header Injection in HotelRunner\u0027s B2B",
      "x_generator": {
        "engine": "Vulnogram 0.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "ca940d4e-fea4-4aa2-9a58-591a58b1ce21",
    "assignerShortName": "TR-CERT",
    "cveId": "CVE-2025-4295",
    "datePublished": "2025-07-22T13:58:00.772Z",
    "dateReserved": "2025-05-05T12:15:56.577Z",
    "dateUpdated": "2026-06-05T17:24:53.165Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2025-4295",
      "date": "2026-06-18",
      "epss": "0.00097",
      "percentile": "0.00952"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-4295\",\"sourceIdentifier\":\"iletisim@usom.gov.tr\",\"published\":\"2025-07-22T14:15:34.983\",\"lastModified\":\"2026-06-05T18:16:54.610\",\"vulnStatus\":\"Deferred\",\"cveTags\":[{\"sourceIdentifier\":\"iletisim@usom.gov.tr\",\"tags\":[\"exclusively-hosted-service\"]}],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Improper Validation of Certificate with Host Mismatch vulnerability in HotelRunner B2B allows HTTP Response Splitting.\\n\\nThis issue affects B2B: before 04.06.2025.\"},{\"lang\":\"es\",\"value\":\"La vulnerabilidad de validaci\u00f3n incorrecta del certificado con falta de coincidencia de host en HotelRunner B2B permite la divisi\u00f3n de la respuesta HTTP. Este problema afecta a B2B: antes del 04.06.2025.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"iletisim@usom.gov.tr\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N\",\"baseScore\":4.6,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"REQUIRED\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":2.1,\"impactScore\":2.5}]},\"weaknesses\":[{\"source\":\"iletisim@usom.gov.tr\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-297\"}]}],\"references\":[{\"url\":\"https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-25-0169\",\"source\":\"iletisim@usom.gov.tr\"},{\"url\":\"https://www.usom.gov.tr/bildirim/tr-25-0169\",\"source\":\"iletisim@usom.gov.tr\"}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2025-4295\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-07-22T14:07:45.966946Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-07-22T14:08:06.618Z\"}}], \"cna\": {\"tags\": [\"exclusively-hosted-service\"], \"title\": \"Host Header Injection in HotelRunner\u0027s B2B\", \"source\": {\"defect\": [\"TR-25-0169\"], \"advisory\": \"TR-25-0169\", \"discovery\": \"UNKNOWN\"}, \"credits\": [{\"lang\": \"en\", \"type\": \"finder\", \"value\": \"Berat ARSLAN\"}, {\"lang\": \"en\", \"type\": \"finder\", \"value\": \"Priente Software Inc.\"}], \"impacts\": [{\"capecId\": \"CAPEC-34\", \"descriptions\": [{\"lang\": \"en\", \"value\": \"CAPEC-34 HTTP Response Splitting\"}]}], \"metrics\": [{\"format\": \"CVSS\", \"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 4.6, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N\", \"integrityImpact\": \"LOW\", \"userInteraction\": \"REQUIRED\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"NONE\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"LOW\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"vendor\": \"HotelRunner\", \"product\": \"B2B\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"lessThan\": \"04.06.2025\", \"versionType\": \"custom\"}], \"defaultStatus\": \"unaffected\"}], \"references\": [{\"url\": \"https://www.usom.gov.tr/bildirim/tr-25-0169\", \"tags\": [\"government-resource\", \"broken-link\"]}, {\"url\": \"https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-25-0169\", \"tags\": [\"government-resource\"]}], \"x_generator\": {\"engine\": \"Vulnogram 0.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"Improper Validation of Certificate with Host Mismatch vulnerability in HotelRunner B2B allows HTTP Response Splitting.\\n\\nThis issue affects B2B: before 04.06.2025.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"Improper Validation of Certificate with Host Mismatch vulnerability in HotelRunner B2B allows HTTP Response Splitting.\u003cp\u003eThis issue affects B2B: before 04.06.2025.\u003c/p\u003e\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-297\", \"description\": \"CWE-297 Improper Validation of Certificate with Host Mismatch\"}]}], \"providerMetadata\": {\"orgId\": \"ca940d4e-fea4-4aa2-9a58-591a58b1ce21\", \"shortName\": \"TR-CERT\", \"dateUpdated\": \"2026-06-05T17:24:53.165Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2025-4295\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-06-05T17:24:53.165Z\", \"dateReserved\": \"2025-05-05T12:15:56.577Z\", \"assignerOrgId\": \"ca940d4e-fea4-4aa2-9a58-591a58b1ce21\", \"datePublished\": \"2025-07-22T13:58:00.772Z\", \"assignerShortName\": \"TR-CERT\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





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.