CVE-2026-2440 (GCVE-0-2026-2440)

Vulnerability from cvelistv5 – Published: 2026-03-21 03:26 – Updated: 2026-04-08 16:34
VLAI?
Title
SurveyJS: Drag & Drop Form Builder <= 2.5.3 - Unauthenticated Stored Cross-Site Scripting
Summary
The SurveyJS plugin for WordPress is vulnerable to Stored Cross-Site Scripting in all versions up to, and including, 2.5.3 via survey result submissions. This is due to insufficient input sanitization and output escaping. The public survey page exposes the nonce required for submission, allowing unauthenticated attackers to submit HTML-encoded payloads that are decoded and rendered as executable HTML when an administrator views survey results, leading to stored XSS in the admin context.
Severity ?
7.2 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
CWE
  • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
Impacted products
Vendor Product Version
devsoftbaltic SurveyJS: Drag & Drop Form Builder Affected: 0 , ≤ 2.5.3 (semver)
Create a notification for this product.
Credits
Daniel Basta
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-2440",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-03-23T16:38:35.706788Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-03-23T16:38:55.208Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "SurveyJS: Drag \u0026 Drop Form Builder",
          "vendor": "devsoftbaltic",
          "versions": [
            {
              "lessThanOrEqual": "2.5.3",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Daniel Basta"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The SurveyJS plugin for WordPress is vulnerable to Stored Cross-Site Scripting in all versions up to, and including, 2.5.3 via survey result submissions. This is due to insufficient input sanitization and output escaping. The public survey page exposes the nonce required for submission, allowing unauthenticated attackers to submit HTML-encoded payloads that are decoded and rendered as executable HTML when an administrator views survey results, leading to stored XSS in the admin context."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.2,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-79",
              "description": "CWE-79 Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-08T16:34:09.980Z",
        "orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
        "shortName": "Wordfence"
      },
      "references": [
        {
          "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/08264ef7-940f-46b6-9880-34d730adad3c?source=cve"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/surveyjs/tags/2.5.2/ajax_handlers/save_result.php#L15"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/surveyjs/tags/2.5.2/views/results.php#L116"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-03-20T15:16:58.000Z",
          "value": "Disclosed"
        }
      ],
      "title": "SurveyJS: Drag \u0026 Drop Form Builder \u003c= 2.5.3 - Unauthenticated Stored Cross-Site Scripting"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
    "assignerShortName": "Wordfence",
    "cveId": "CVE-2026-2440",
    "datePublished": "2026-03-21T03:26:31.223Z",
    "dateReserved": "2026-02-12T23:54:31.843Z",
    "dateUpdated": "2026-04-08T16:34:09.980Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-2440",
      "date": "2026-04-23",
      "epss": "0.00108",
      "percentile": "0.29083"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-2440\",\"sourceIdentifier\":\"security@wordfence.com\",\"published\":\"2026-03-21T04:17:02.220\",\"lastModified\":\"2026-04-22T21:32:08.360\",\"vulnStatus\":\"Deferred\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"The SurveyJS plugin for WordPress is vulnerable to Stored Cross-Site Scripting in all versions up to, and including, 2.5.3 via survey result submissions. This is due to insufficient input sanitization and output escaping. The public survey page exposes the nonce required for submission, allowing unauthenticated attackers to submit HTML-encoded payloads that are decoded and rendered as executable HTML when an administrator views survey results, leading to stored XSS in the admin context.\"},{\"lang\":\"es\",\"value\":\"El plugin SurveyJS para WordPress es vulnerable a cross-site scripting almacenado en todas las versiones hasta la 2.5.3, inclusive, a trav\u00e9s del env\u00edo de resultados de encuestas. Esto se debe a una sanitizaci\u00f3n de entrada y un escape de salida insuficientes. La p\u00e1gina p\u00fablica de la encuesta expone el nonce requerido para el env\u00edo, lo que permite a atacantes no autenticados enviar cargas \u00fatiles codificadas en HTML que se decodifican y se renderizan como HTML ejecutable cuando un administrador ve los resultados de la encuesta, lo que lleva a XSS almacenado en el contexto de administrador.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security@wordfence.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N\",\"baseScore\":7.2,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":3.9,\"impactScore\":2.7}]},\"weaknesses\":[{\"source\":\"security@wordfence.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-79\"}]}],\"references\":[{\"url\":\"https://plugins.trac.wordpress.org/browser/surveyjs/tags/2.5.2/ajax_handlers/save_result.php#L15\",\"source\":\"security@wordfence.com\"},{\"url\":\"https://plugins.trac.wordpress.org/browser/surveyjs/tags/2.5.2/views/results.php#L116\",\"source\":\"security@wordfence.com\"},{\"url\":\"https://www.wordfence.com/threat-intel/vulnerabilities/id/08264ef7-940f-46b6-9880-34d730adad3c?source=cve\",\"source\":\"security@wordfence.com\"}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-2440\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-03-23T16:38:35.706788Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-03-23T16:38:48.064Z\"}}], \"cna\": {\"title\": \"SurveyJS: Drag \u0026 Drop Form Builder \u003c= 2.5.3 - Unauthenticated Stored Cross-Site Scripting\", \"credits\": [{\"lang\": \"en\", \"type\": \"finder\", \"value\": \"Daniel Basta\"}], \"metrics\": [{\"cvssV3_1\": {\"version\": \"3.1\", \"baseScore\": 7.2, \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N\"}}], \"affected\": [{\"vendor\": \"devsoftbaltic\", \"product\": \"SurveyJS: Drag \u0026 Drop Form Builder\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"2.5.3\"}], \"defaultStatus\": \"unaffected\"}], \"timeline\": [{\"lang\": \"en\", \"time\": \"2026-03-20T15:16:58.000Z\", \"value\": \"Disclosed\"}], \"references\": [{\"url\": \"https://www.wordfence.com/threat-intel/vulnerabilities/id/08264ef7-940f-46b6-9880-34d730adad3c?source=cve\"}, {\"url\": \"https://plugins.trac.wordpress.org/browser/surveyjs/tags/2.5.2/ajax_handlers/save_result.php#L15\"}, {\"url\": \"https://plugins.trac.wordpress.org/browser/surveyjs/tags/2.5.2/views/results.php#L116\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"The SurveyJS plugin for WordPress is vulnerable to Stored Cross-Site Scripting in all versions up to, and including, 2.5.3 via survey result submissions. This is due to insufficient input sanitization and output escaping. The public survey page exposes the nonce required for submission, allowing unauthenticated attackers to submit HTML-encoded payloads that are decoded and rendered as executable HTML when an administrator views survey results, leading to stored XSS in the admin context.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-79\", \"description\": \"CWE-79 Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)\"}]}], \"providerMetadata\": {\"orgId\": \"b15e7b5b-3da4-40ae-a43c-f7aa60e62599\", \"shortName\": \"Wordfence\", \"dateUpdated\": \"2026-04-08T16:34:09.980Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-2440\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-04-08T16:34:09.980Z\", \"dateReserved\": \"2026-02-12T23:54:31.843Z\", \"assignerOrgId\": \"b15e7b5b-3da4-40ae-a43c-f7aa60e62599\", \"datePublished\": \"2026-03-21T03:26:31.223Z\", \"assignerShortName\": \"Wordfence\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

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.