FKIE_CVE-2026-34071

Vulnerability from fkie_nvd - Published: 2026-03-26 17:16 - Updated: 2026-03-31 21:19
Severity ?
5.4 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
6.1 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Summary
Stirling-PDF is a locally hosted web application that allows you to perform various operations on PDF files. In version 2.7.3, the /api/v1/convert/eml/pdf endpoint with parameter downloadHtml=true returns unsanitized HTML from the email body with Content-Type: text/html. An attacker who sends a malicious email to a Stirling-PDF user can achieve JavaScript execution when that user exports the email using the "Download HTML intermediate file" feature. Version 2.8.0 fixes the issue.
References
security-advisories@github.comhttps://github.com/Stirling-Tools/Stirling-PDF/security/advisories/GHSA-xmhg-fv84-jgfcExploit, Vendor Advisory
Impacted products
Vendor Product Version
stirlingpdf stirling_pdf 2.7.3
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:stirlingpdf:stirling_pdf:2.7.3:*:*:*:*:*:*:*",
              "matchCriteriaId": "17CFB83D-EC99-4EA0-87E6-80331F67BAED",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Stirling-PDF is a locally hosted web application that allows you to perform various operations on PDF files. In version 2.7.3, the /api/v1/convert/eml/pdf endpoint with parameter downloadHtml=true returns unsanitized HTML from the email body with Content-Type: text/html. An attacker who sends a malicious email to a Stirling-PDF user can achieve JavaScript execution when that user exports the email using the \"Download HTML intermediate file\" feature. Version 2.8.0 fixes the issue."
    },
    {
      "lang": "es",
      "value": "Stirling-PDF es una aplicaci\u00f3n web alojada localmente que le permite realizar varias operaciones en archivos PDF. En la versi\u00f3n 2.7.3, el endpoint /API/v1/convert/eml/pdf con el par\u00e1metro downloadHtml=true devuelve HTML sin sanear del cuerpo del correo electr\u00f3nico con Content-Type: text/html. Un atacante que env\u00eda un correo electr\u00f3nico malicioso a un usuario de Stirling-PDF puede lograr la ejecuci\u00f3n de JavaScript cuando ese usuario exporta el correo electr\u00f3nico utilizando la funci\u00f3n \u0027Descargar archivo HTML intermedio\u0027. La versi\u00f3n 2.8.0 corrige el problema."
    }
  ],
  "id": "CVE-2026-34071",
  "lastModified": "2026-03-31T21:19:24.613",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.4,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 2.5,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.1,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 2.7,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2026-03-26T17:16:41.647",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Exploit",
        "Vendor Advisory"
      ],
      "url": "https://github.com/Stirling-Tools/Stirling-PDF/security/advisories/GHSA-xmhg-fv84-jgfc"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Primary"
    }
  ]
}


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  • 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.
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  • 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.