Vulnerability-Lookup

CNVD-2026-19970

Vulnerability from cnvd - Published: 2026-05-11

Title

FluentCMS TextHTML插件跨站脚本漏洞

Description

FluentCMS是一款基于.NET的内容管理系统（CMS），主要用于快速构建网站并管理网站内容。 FluentCMS TextHTML插件存在跨站脚本漏洞。该漏洞源于对用户输入验证不足，未能正确过滤特殊字符，攻击者可利用该漏洞通过构造恶意代码注入页面，从而窃取用户Cookie或执行恶意操作。

Severity

中

Formal description

厂商尚未发布漏洞修复程序，请及时关注更新： https://github.com/fluentcms/FluentCMS/issues/2405

Reference

https://nvd.nist.gov/vuln/detail/CVE-2026-38947

Impacted products

Name
Fluentcms FluentCMS 1.2.3

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2026-38947",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2026-38947"
    }
  },
  "description": "FluentCMS\u662f\u4e00\u6b3e\u57fa\u4e8e.NET\u7684\u5185\u5bb9\u7ba1\u7406\u7cfb\u7edf\uff08CMS\uff09\uff0c\u4e3b\u8981\u7528\u4e8e\u5feb\u901f\u6784\u5efa\u7f51\u7ad9\u5e76\u7ba1\u7406\u7f51\u7ad9\u5185\u5bb9\u3002\n\nFluentCMS TextHTML\u63d2\u4ef6\u5b58\u5728\u8de8\u7ad9\u811a\u672c\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5bf9\u7528\u6237\u8f93\u5165\u9a8c\u8bc1\u4e0d\u8db3\uff0c\u672a\u80fd\u6b63\u786e\u8fc7\u6ee4\u7279\u6b8a\u5b57\u7b26\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u901a\u8fc7\u6784\u9020\u6076\u610f\u4ee3\u7801\u6ce8\u5165\u9875\u9762\uff0c\u4ece\u800c\u7a83\u53d6\u7528\u6237Cookie\u6216\u6267\u884c\u6076\u610f\u64cd\u4f5c\u3002",
  "formalWay": "\u5382\u5546\u5c1a\u672a\u53d1\u5e03\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://github.com/fluentcms/FluentCMS/issues/2405",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2026-19970",
  "openTime": "2026-05-11",
  "products": {
    "product": "Fluentcms FluentCMS 1.2.3"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2026-38947",
  "serverity": "\u4e2d",
  "submitTime": "2026-05-06",
  "title": "FluentCMS TextHTML\u63d2\u4ef6\u8de8\u7ad9\u811a\u672c\u6f0f\u6d1e"
}

CVE-2026-38947 (GCVE-0-2026-38947)

Vulnerability from cvelistv5 – Published: 2026-05-05 00:00 – Updated: 2026-05-06 15:25

Summary

FluentCMS 1.2.3 is vulnerable to Cross Site Scripting (XSS) in TextHTML plugin.

Severity

6.1 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-06 12:46 UTC

CWE

n/a
CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Assigner

mitre CNA under the mitre root

CNA scorecard E 28/100 over 2263 records in the last 180 days details

References

1 reference

URL	Tags
https://github.com/fluentcms/FluentCMS/issues/2405

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "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"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-38947",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-06T12:46:16.515105Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "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": "2026-05-06T15:25:56.603Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://github.com/fluentcms/FluentCMS/issues/2405"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "FluentCMS 1.2.3 is vulnerable to Cross Site Scripting (XSS) in TextHTML plugin."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-05T19:45:31.975Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "url": "https://github.com/fluentcms/FluentCMS/issues/2405"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2026-38947",
    "datePublished": "2026-05-05T00:00:00.000Z",
    "dateReserved": "2026-04-06T00:00:00.000Z",
    "dateUpdated": "2026-05-06T15:25:56.603Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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