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Medium

Cross-Site Scripting stored in Alkacon OpenCMS

Type: advisorySources: OSV

Two Cross-Site Scripting vulnerabilities have been discovered in Alkacon's OpenCMS affecting version 16, which could allow a user with sufficient privileges to create and modify web pages through the admin panel, can execute malicious JavaScript code, after inserting code in the “title” field.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2024-5520
Confirmed fixed CVEs
Not specified
Updated in this feed
4 Nov 2026, 15:07 UTC · Revision 1

Source evidence

Cross-Site Scripting stored in Alkacon OpenCMS

core-osv · Original source

Published 30 May 2024, 11:10 UTC

Two Cross-Site Scripting vulnerabilities have been discovered in Alkacon's OpenCMS affecting version 16, which could allow a user with sufficient privileges to create and modify web pages through the admin panel, can execute malicious JavaScript code, after inserting code in the “title” field.

osv:CVE-2024-5520
Complete source record
{
  "id": "722fcf0f06d6c79cb2a4118612f1ae90c7de3c68f7f94d6cdde81103d19f4cb9",
  "url": "https://osv.dev/vulnerability/CVE-2024-5520",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Cross-Site Scripting stored in Alkacon OpenCMS",
    "summary": "Two Cross-Site Scripting vulnerabilities have been discovered in Alkacon's OpenCMS affecting version 16, which could allow a user with sufficient privileges to create and modify web pages through the admin panel, can execute malicious JavaScript code, after inserting code in the “title” field.",
    "evidence": "osv:CVE-2024-5520",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2024-5520",
      "aliases": [
        "CVE-2024-5520",
        "GHSA-vg6x-pchq-98mg"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/alkacon/opencms-core",
              "type": "GIT",
              "events": [
                {
                  "introduced": "773f1d2c19a861bb0ab2bbaab97bd3bae5a76063"
                },
                {
                  "last_affected": "773f1d2c19a861bb0ab2bbaab97bd3bae5a76063"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:alkacon:opencms:16.0.0:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "16.0.0"
                      },
                      {
                        "last_affected": "16.0.0"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "16.0.0",
            "build_16_0_0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-5520.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:36.698562311Z",
      "provider": "osv",
      "references": [
        "https://www.incibe.es/en/incibe-cert/notices/aviso/cross-site-scripting-stored-alkacon-opencms",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/5xxx/CVE-2024-5520.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2024-5520"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-79"
        ],
        "cna_assigner": "INCIBE",
        "unresolved_ranges": [
          {
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "16"
                  },
                  {
                    "last_affected": "16"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StandaloneSingleVersion"
              }
            ]
          }
        ],
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/5xxx/CVE-2024-5520.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2024-5520",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 503997,
  "published_at": "2024-05-30T11:10:37.52+00:00"
}