Vulnerability-Lookup

CNVD-2026-32220

Vulnerability from cnvd - Published: 2026-08-17

Title

WordPress YMC Filter跨站脚本漏洞

Description

WordPress是一款基于PHP/MySQL构建的‌免费开源内容管理系统（CMS）及博客平台‌。 WordPress YMC Filter存在跨站脚本漏洞，该漏洞源于布局构建器设置保存时未校验对象所有权，输出到公共端点前也未进行充分清理和转义。攻击者可利用该漏洞以贡献者及以上权限存储JavaScript，当用户查看受影响筛选器时执行脚本。

Severity

中

Patch Name

WordPress YMC Filter跨站脚本漏洞的补丁

Patch Description

Formal description

目前厂商已发布升级程序修复该安全问题，详情见厂商官网: https://wordpress.org/plugins/ymc-smart-filter/

Reference

https://nvd.nist.gov/vuln/detail/CVE-2026-16558

Impacted products

Name
WordPress YMC Filter <3.12.8

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2026-16558",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2026-16558"
    }
  },
  "description": "WordPress\u662f\u4e00\u6b3e\u57fa\u4e8ePHP/MySQL\u6784\u5efa\u7684\u200c\u514d\u8d39\u5f00\u6e90\u5185\u5bb9\u7ba1\u7406\u7cfb\u7edf\uff08CMS\uff09\u53ca\u535a\u5ba2\u5e73\u53f0\u200c\u3002\n\nWordPress YMC Filter\u5b58\u5728\u8de8\u7ad9\u811a\u672c\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5e03\u5c40\u6784\u5efa\u5668\u8bbe\u7f6e\u4fdd\u5b58\u65f6\u672a\u6821\u9a8c\u5bf9\u8c61\u6240\u6709\u6743\uff0c\u8f93\u51fa\u5230\u516c\u5171\u7aef\u70b9\u524d\u4e5f\u672a\u8fdb\u884c\u5145\u5206\u6e05\u7406\u548c\u8f6c\u4e49\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u4ee5\u8d21\u732e\u8005\u53ca\u4ee5\u4e0a\u6743\u9650\u5b58\u50a8JavaScript\uff0c\u5f53\u7528\u6237\u67e5\u770b\u53d7\u5f71\u54cd\u7b5b\u9009\u5668\u65f6\u6267\u884c\u811a\u672c\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u7a0b\u5e8f\u4fee\u590d\u8be5\u5b89\u5168\u95ee\u9898\uff0c\u8be6\u60c5\u89c1\u5382\u5546\u5b98\u7f51:\r\nhttps://wordpress.org/plugins/ymc-smart-filter/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2026-32220",
  "openTime": "2026-08-17",
  "patchDescription": "WordPress\u662f\u4e00\u6b3e\u57fa\u4e8ePHP/MySQL\u6784\u5efa\u7684\u200c\u514d\u8d39\u5f00\u6e90\u5185\u5bb9\u7ba1\u7406\u7cfb\u7edf\uff08CMS\uff09\u53ca\u535a\u5ba2\u5e73\u53f0\u200c\u3002\r\n\r\nWordPress YMC Filter\u5b58\u5728\u8de8\u7ad9\u811a\u672c\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5e03\u5c40\u6784\u5efa\u5668\u8bbe\u7f6e\u4fdd\u5b58\u65f6\u672a\u6821\u9a8c\u5bf9\u8c61\u6240\u6709\u6743\uff0c\u8f93\u51fa\u5230\u516c\u5171\u7aef\u70b9\u524d\u4e5f\u672a\u8fdb\u884c\u5145\u5206\u6e05\u7406\u548c\u8f6c\u4e49\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u4ee5\u8d21\u732e\u8005\u53ca\u4ee5\u4e0a\u6743\u9650\u5b58\u50a8JavaScript\uff0c\u5f53\u7528\u6237\u67e5\u770b\u53d7\u5f71\u54cd\u7b5b\u9009\u5668\u65f6\u6267\u884c\u811a\u672c\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "WordPress YMC Filter\u8de8\u7ad9\u811a\u672c\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "WordPress YMC Filter \u003c3.12.8"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2026-16558",
  "serverity": "\u4e2d",
  "submitTime": "2026-08-11",
  "title": "WordPress YMC Filter\u8de8\u7ad9\u811a\u672c\u6f0f\u6d1e"
}

CVE-2026-16558 (GCVE-0-2026-16558)

Vulnerability from cvelistv5 – Published: 2026-08-08 06:00 – Updated: 2026-08-10 19:45

Title

YMC Filter < 3.12.8 - Contributor+ Stored XSS via Layout Builder Schema

Summary

The YMC Filter WordPress plugin before 3.12.8 does not sanitize and escape a layout builder setting before outputting it on a public endpoint, and does not verify object ownership when the setting is saved, allowing users with the Contributor role and above to store JavaScript that executes in the browser of any visitor viewing an affected filter.

Severity

5.4 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/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 2026-08-10 19:45 UTC

CWE

CWE-79 Cross-Site Scripting (XSS)
CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Assigner

WPScan mitre root

References

1 reference

URL	Tags
https://wpscan.com/vulnerability/06ba0551-deab-41…	exploitvdb-entrytechnical-description

Impacted products

1 product

Vendor	Product	Version
Unknown	YMC Filter	Affected: 3.6.0 , < 3.12.8 (semver)

Credits

Usama Arshad WPScan

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 5.4,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "LOW",
              "integrityImpact": "LOW",
              "privilegesRequired": "LOW",
              "scope": "CHANGED",
              "userInteraction": "REQUIRED",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-16558",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-10T19:45:31.018500Z",
                "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": "2026-08-10T19:45:58.875Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "YMC Filter",
          "vendor": "Unknown",
          "versions": [
            {
              "lessThan": "3.12.8",
              "status": "affected",
              "version": "3.6.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Usama Arshad"
        },
        {
          "lang": "en",
          "type": "coordinator",
          "value": "WPScan"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The YMC Filter WordPress plugin before 3.12.8 does not sanitize and escape a layout builder setting before outputting it on a public endpoint, and does not verify object ownership when the setting is saved, allowing users with the Contributor role and above to store JavaScript that executes in the browser of any visitor viewing an affected filter."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-79 Cross-Site Scripting (XSS)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-08T06:00:11.244Z",
        "orgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
        "shortName": "WPScan"
      },
      "references": [
        {
          "tags": [
            "exploit",
            "vdb-entry",
            "technical-description"
          ],
          "url": "https://wpscan.com/vulnerability/06ba0551-deab-41fb-b501-eef0727b431a/"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "YMC Filter \u003c 3.12.8 - Contributor+ Stored XSS via Layout Builder Schema",
      "x_generator": {
        "engine": "WPScan CVE Generator"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
    "assignerShortName": "WPScan",
    "cveId": "CVE-2026-16558",
    "datePublished": "2026-08-08T06:00:11.244Z",
    "dateReserved": "2026-07-22T12:09:48.181Z",
    "dateUpdated": "2026-08-10T19:45:58.875Z",
    "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.

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.

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CNVD-2026-32220

CVE-2026-16558 (GCVE-0-2026-16558)

Tags

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Nomenclature

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