CVE-2026-12114 (GCVE-0-2026-12114)

Vulnerability from cvelistv5 – Published: 2026-06-30 02:30 – Updated: 2026-06-30 02:30
VLAI
Title
Team Members <= 8.7 - Authenticated (Administrator+) Stored Cross-Site Scripting via 'custom_css' Parameter
Summary
The Team Members – Multi Language Supported Team Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 8.7 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.
Severity
4.4 (Medium)
CVSS:3.1/AV:N/AC:H/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
References
Impacted products
Credits
AveronSec
Show details on NVD website
To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Team Members \u2013 Multi Language Supported Team Plugin",
          "vendor": "wpmart",
          "versions": [
            {
              "lessThanOrEqual": "8.7",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "AveronSec"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The Team Members \u2013 Multi Language Supported Team Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 8.7 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 4.4,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/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": "2026-06-30T02:30:43.311Z",
        "orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
        "shortName": "Wordfence"
      },
      "references": [
        {
          "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/ccf00ec5-b91a-47db-81e6-68f984b8f06b?source=cve"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/team-showcase-supreme/tags/8.7/shortcode.php#L200"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/team-showcase-supreme/tags/8.7/settings/helper/slider_form_save.php#L529"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/team-showcase-supreme/tags/8.7/settings/helper/slider_form_save.php#L531"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/team-showcase-supreme/tags/8.6/shortcode.php#L200"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/team-showcase-supreme/tags/8.6/settings/helper/slider_form_save.php#L529"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/team-showcase-supreme/tags/8.6/settings/helper/slider_form_save.php#L531"
        },
        {
          "url": "https://plugins.trac.wordpress.org/changeset?sfp_email=\u0026sfph_mail=\u0026reponame=\u0026old=3580341%40team-showcase-supreme\u0026new=3580341%40team-showcase-supreme\u0026sfp_email=\u0026sfph_mail="
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-06-13T04:28:16.000Z",
          "value": "Vendor Notified"
        },
        {
          "lang": "en",
          "time": "2026-06-29T14:28:14.000Z",
          "value": "Disclosed"
        }
      ],
      "title": "Team Members \u003c= 8.7 - Authenticated (Administrator+) Stored Cross-Site Scripting via \u0027custom_css\u0027 Parameter"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
    "assignerShortName": "Wordfence",
    "cveId": "CVE-2026-12114",
    "datePublished": "2026-06-30T02:30:43.311Z",
    "dateReserved": "2026-06-12T14:44:10.569Z",
    "dateUpdated": "2026-06-30T02:30:43.311Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-12114\",\"sourceIdentifier\":\"security@wordfence.com\",\"published\":\"2026-06-30T03:17:09.940\",\"lastModified\":\"2026-06-30T03:17:09.940\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"The Team Members \u2013 Multi Language Supported Team Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 8.7 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.\"}],\"affected\":[{\"source\":\"security@wordfence.com\",\"affectedData\":[{\"vendor\":\"wpmart\",\"product\":\"Team Members \u2013 Multi Language Supported Team Plugin\",\"defaultStatus\":\"unaffected\",\"versions\":[{\"version\":\"0\",\"lessThanOrEqual\":\"8.7\",\"versionType\":\"semver\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security@wordfence.com\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N\",\"baseScore\":4.4,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"HIGH\",\"userInteraction\":\"NONE\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":1.3,\"impactScore\":2.7}]},\"weaknesses\":[{\"source\":\"security@wordfence.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-79\"}]}],\"references\":[{\"url\":\"https://plugins.trac.wordpress.org/browser/team-showcase-supreme/tags/8.6/settings/helper/slider_form_save.php#L529\",\"source\":\"security@wordfence.com\"},{\"url\":\"https://plugins.trac.wordpress.org/browser/team-showcase-supreme/tags/8.6/settings/helper/slider_form_save.php#L531\",\"source\":\"security@wordfence.com\"},{\"url\":\"https://plugins.trac.wordpress.org/browser/team-showcase-supreme/tags/8.6/shortcode.php#L200\",\"source\":\"security@wordfence.com\"},{\"url\":\"https://plugins.trac.wordpress.org/browser/team-showcase-supreme/tags/8.7/settings/helper/slider_form_save.php#L529\",\"source\":\"security@wordfence.com\"},{\"url\":\"https://plugins.trac.wordpress.org/browser/team-showcase-supreme/tags/8.7/settings/helper/slider_form_save.php#L531\",\"source\":\"security@wordfence.com\"},{\"url\":\"https://plugins.trac.wordpress.org/browser/team-showcase-supreme/tags/8.7/shortcode.php#L200\",\"source\":\"security@wordfence.com\"},{\"url\":\"https://plugins.trac.wordpress.org/changeset?sfp_email=\u0026sfph_mail=\u0026reponame=\u0026old=3580341%40team-showcase-supreme\u0026new=3580341%40team-showcase-supreme\u0026sfp_email=\u0026sfph_mail=\",\"source\":\"security@wordfence.com\"},{\"url\":\"https://www.wordfence.com/threat-intel/vulnerabilities/id/ccf00ec5-b91a-47db-81e6-68f984b8f06b?source=cve\",\"source\":\"security@wordfence.com\"}]}}"
  }
}


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