Vulnerability-Lookup

GHSA-HRWG-P9C4-49WP

Vulnerability from github – Published: 2026-03-13 21:31 – Updated: 2026-03-20 15:31

Details

wpDiscuz before 7.6.47 contains a cross-site scripting vulnerability in the customCss field that allows administrators to inject malicious scripts by breaking out of style tags. Attackers with admin access can inject payloads like alert(1) in the custom CSS setting to execute arbitrary JavaScript in user browsers.

Severity ?

5.5 (Medium)


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

5.1 (Medium)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

Show details on source website

JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2026-22209"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-78",
      "CWE-79"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-03-13T19:54:11Z",
    "severity": "MODERATE"
  },
  "details": "wpDiscuz before 7.6.47 contains a cross-site scripting vulnerability in the customCss field that allows administrators to inject malicious scripts by breaking out of style tags. Attackers with admin access can inject payloads like \u003c/style\u003e\u003cscript\u003ealert(1)\u003c/script\u003e in the custom CSS setting to execute arbitrary JavaScript in user browsers.",
  "id": "GHSA-hrwg-p9c4-49wp",
  "modified": "2026-03-20T15:31:05Z",
  "published": "2026-03-13T21:31:46Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-22209"
    },
    {
      "type": "WEB",
      "url": "https://github.com/themactep/thingino-firmware/releases/tag/firmware-2026-03-15"
    },
    {
      "type": "WEB",
      "url": "https://wordpress.org/plugins/wpdiscuz"
    },
    {
      "type": "WEB",
      "url": "https://wordpress.org/plugins/wpdiscuz/#developers"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/thingino-firmware-api-cgi-unauthenticated-command-injection-in-captive-portal"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/wpdiscuz-before-cross-site-scripting-via-unescaped-custom-css-in-style-tag"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2026-22209 (GCVE-0-2026-22209)

Vulnerability from cvelistv5 – Published: 2026-03-13 01:18 – Updated: 2026-03-26 18:43

Title

wpDiscuz before 7.6.47 - Cross-Site Scripting via Unescaped Custom CSS in Style Tag

Summary

wpDiscuz before 7.6.47 contains a cross-site scripting vulnerability in the customCss field that allows administrators to inject malicious scripts by breaking out of style tags. Attackers with admin access can inject payloads like </style><script>alert(1)</script> in the custom CSS setting to execute arbitrary JavaScript in user browsers.

Severity ?

5.1 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

5.5 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:H/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

VulnCheck

References

URL

Tags

	https://wordpress.org/plugins/wpdiscuz/#developers	patch
	https://wordpress.org/plugins/wpdiscuz/	product
	https://www.vulncheck.com/advisories/wpdiscuz-bef…	third-party-advisory

Impacted products

	Vendor	Product	Version
	gVectors	wpDiscuz	Affected: 0 , < 7.6.47 (custom) Unaffected: 7.6.47

Date Public ?

2026-03-11 00:00

Credits

Scott Moore - VulnCheck

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-22209",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-03-13T14:15:11.236119Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-03-13T14:16:06.234Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "packageURL": "pkg:wordpress-plugin/wpdiscuz",
          "product": "wpDiscuz",
          "vendor": "gVectors",
          "versions": [
            {
              "lessThan": "7.6.47",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            },
            {
              "status": "unaffected",
              "version": "7.6.47"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Scott Moore - VulnCheck"
        }
      ],
      "datePublic": "2026-03-11T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "wpDiscuz before 7.6.47 contains a cross-site scripting vulnerability in the customCss field that allows administrators to inject malicious scripts by breaking out of style tags. Attackers with admin access can inject payloads like \u003c/style\u003e\u003cscript\u003ealert(1)\u003c/script\u003e in the custom CSS setting to execute arbitrary JavaScript in user browsers."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "baseScore": 5.1,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "HIGH",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N",
            "version": "4.0"
          },
          "format": "CVSS"
        },
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "baseScore": 5.5,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "HIGH",
            "scope": "CHANGED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N",
            "version": "3.1"
          },
          "format": "CVSS"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-79",
              "description": "Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-03-26T18:43:47.480Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
      },
      "references": [
        {
          "name": "wpDiscuz Changelog",
          "tags": [
            "patch"
          ],
          "url": "https://wordpress.org/plugins/wpdiscuz/#developers"
        },
        {
          "name": "wpDiscuz",
          "tags": [
            "product"
          ],
          "url": "https://wordpress.org/plugins/wpdiscuz/"
        },
        {
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.vulncheck.com/advisories/wpdiscuz-before-cross-site-scripting-via-unescaped-custom-css-in-style-tag"
        }
      ],
      "title": "wpDiscuz before 7.6.47 - Cross-Site Scripting via Unescaped Custom CSS in Style Tag",
      "x_generator": {
        "engine": "scooter"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-22209",
    "datePublished": "2026-03-13T01:18:13.141Z",
    "dateReserved": "2026-01-06T16:47:17.187Z",
    "dateUpdated": "2026-03-26T18:43:47.480Z",
    "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.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-HRWG-P9C4-49WP

CVE-2026-22209 (GCVE-0-2026-22209)

Tags

Sightings

Nomenclature