W (wcms) through 3.18.0 Unauthenticated Stored XSS via Login Username and Comments

{
  "id": "4ec02769d6d882cc715907875d454b9988bc796c3ab50e3c82c1d29fc45d81f6",
  "url": "https://osv.dev/vulnerability/CVE-2026-105124",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "W (wcms) through 3.18.0 Unauthenticated Stored XSS via Login Username and Comments",
    "summary": "W (vincent-peugnet/wcms) through 3.18.0 contains a stored cross-site scripting vulnerability that allows unauthenticated attackers to inject scripts via the login user field and visitor comment website field. Attackers can submit failed logins rendered unescaped in the adminlog.php log viewer, or comment URLs echoed into href attributes in editrightbar.php, executing script with administrator or editor privileges.",
    "evidence": "osv:CVE-2026-105124",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-105124",
      "aliases": [
        "CVE-2026-105124"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/vincent-peugnet/wcms",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "cda5bcdb95dbdb1e804fdfe0e5fd2e2b2f8a90e2"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "3.18.0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "3.18.0"
                      }
                    ],
                    "source": "DESCRIPTION"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v3.18.0",
            "v3.17.0",
            "v3.16.0",
            "v3.15.1",
            "v3.15.0",
            "v3.14.0",
            "v3.13.1",
            "v3.13.0",
            "v3.12.2",
            "v3.12.1",
            "v3.12.0",
            "v3.11.0",
            "v3.10.2",
            "v3.10.1",
            "v3.10.0",
            "v3.9.0",
            "v3.8.0",
            "v3.7.0",
            "v3.6.0",
            "v3.5.0",
            "v3.4.1",
            "v3.4.0",
            "v3.3.0",
            "v3.1.0",
            "v3.0.0",
            "v2.7.3",
            "v2.7.2",
            "v2.7.1",
            "v2.7.0",
            "v2.6.0",
            "v2.5.0",
            "v2.4.0",
            "v2.3.3",
            "v2.3.2",
            "v2.3.1",
            "v2.3.0",
            "v2.2.1",
            "v2.2.0",
            "v2.1.0",
            "v2.0.1",
            "v2.0.0",
            "v1.12.3",
            "v1.12.2",
            "v1.12.1",
            "v1.12.0",
            "v1.11.2",
            "v1.11.1",
            "v1.11.0",
            "v1.10.0",
            "v1.9.1",
            "v1.9.0",
            "v1.8.0",
            "v1.7.0",
            "v1.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-105124.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:23.077004009Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/105xxx/CVE-2026-105124.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-105124",
        "https://www.vulncheck.com/advisories/w-wcms-through-3.18.0-unauthenticated-stored-xss-via-login-username-and-comments",
        "https://github.com/vincent-peugnet/wcms/issues/662",
        "https://github.com/vincent-peugnet/wcms",
        "https://github.com/vincent-peugnet/wcms/blob/cda5bcdb95dbdb1e804fdfe0e5fd2e2b2f8a90e2/app/class/Controllerconnect.php#L56",
        "https://github.com/vincent-peugnet/wcms/blob/cda5bcdb95dbdb1e804fdfe0e5fd2e2b2f8a90e2/app/view/templates/adminlog.php#L71",
        "https://github.com/vincent-peugnet/wcms/blob/cda5bcdb95dbdb1e804fdfe0e5fd2e2b2f8a90e2/app/view/templates/editrightbar.php#L110"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-79"
        ],
        "cna_assigner": "VulnCheck",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/105xxx/CVE-2026-105124.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-105124",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 489575,
  "published_at": "2026-10-03T22:30:13.022+00:00"
}