FKIE_CVE-2026-42615

Vulnerability from fkie_nvd - Published: 2026-04-29 04:16 - Updated: 2026-04-29 04:16
Severity ?
7.2 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Summary
GCHQ CyberChef before 11.0.0 allows XSS via Show Base64 offsets, as demonstrated by the /#recipe=Show_Base64_offsets('%3Cscript substring.
References
cve@mitre.orghttps://github.com/gchq/CyberChef/commit/9641ae07f92e9af50f10e978385465b2f4a36c4d
cve@mitre.orghttps://github.com/gchq/CyberChef/compare/v10.24.0...v11.0.0
cve@mitre.orghttps://github.com/gchq/CyberChef/issues/2344
cve@mitre.orghttps://github.com/gchq/CyberChef/pull/2346
Impacted products
Vendor Product Version
To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "GCHQ CyberChef before 11.0.0 allows XSS via Show Base64 offsets, as demonstrated by the /#recipe=Show_Base64_offsets(\u0027%3Cscript substring."
    }
  ],
  "id": "CVE-2026-42615",
  "lastModified": "2026-04-29T04:16:41.750",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 7.2,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 2.7,
        "source": "cve@mitre.org",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-04-29T04:16:41.750",
  "references": [
    {
      "source": "cve@mitre.org",
      "url": "https://github.com/gchq/CyberChef/commit/9641ae07f92e9af50f10e978385465b2f4a36c4d"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://github.com/gchq/CyberChef/compare/v10.24.0...v11.0.0"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://github.com/gchq/CyberChef/issues/2344"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://github.com/gchq/CyberChef/pull/2346"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ],
      "source": "cve@mitre.org",
      "type": "Primary"
    }
  ]
}


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Detection rules are retrieved from Rulezet.