« Back to list

CVE-2023-28120

Status: DeferredMedium (5.3)—

There is a vulnerability in ActiveSupport if the new bytesplice method is called on a SafeBuffer with untrusted user input.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

⚠ AI-inferred from the description — NVD hasn't analyzed this CVE yet, these aren't verified CPEs.

Rails — ActivesupportAI

CWEs

References

Raw JSON (NVD)

Show
{
  "id": "CVE-2023-28120",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2023-28120",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-01-09T21:44:02.886065Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.3,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "support@hackerone.com",
      "affectedData": [
        {
          "vendor": "Rails",
          "product": "ActiveSupport",
          "versions": [
            {
              "status": "affected",
              "version": "7.0.4.3",
              "lessThan": "7.0.4.3",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "6.1.7.3",
              "lessThan": "6.1.7.3",
              "versionType": "custom"
            }
          ],
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2025-01-09T01:15:07.637",
  "references": [
    {
      "url": "https://discuss.rubyonrails.org/t/cve-2023-28120-possible-xss-security-vulnerability-in-safebuffer-bytesplice/82469",
      "source": "support@hackerone.com"
    },
    {
      "url": "https://github.com/rails/rails/commit/3cf23c3f891e2e81c977ea4ab83b62bc2a444b70",
      "source": "support@hackerone.com"
    },
    {
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UPV6PVCX4VDJHLFFT42EXBBSGAWZICOW/",
      "source": "support@hackerone.com"
    },
    {
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZE5W4MH6IE4DV7GELDK6ISCSTFLHKSYO/",
      "source": "support@hackerone.com"
    },
    {
      "url": "https://security.netapp.com/advisory/ntap-20240202-0006/",
      "source": "support@hackerone.com"
    },
    {
      "url": "https://www.debian.org/security/2023/dsa-5389",
      "source": "support@hackerone.com"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "There is a vulnerability in ActiveSupport if the new bytesplice method is called on a SafeBuffer with untrusted user input."
    },
    {
      "lang": "es",
      "value": "Existe una vulnerabilidad en ActiveSupport si se llama al nuevo método bytesplice en un SafeBuffer con una entrada de usuario no confiable."
    }
  ],
  "lastModified": "2026-06-17T05:46:54.923",
  "sourceIdentifier": "support@hackerone.com"
}