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Medium

MISP Workflow Module: Reflected XSS via Unescaped misp-modules Parameter Names in Form Labels

Type: advisorySources: OSV

MISP contains a reflected cross-site scripting (XSS) vulnerability in the workflow module interface. Parameter names returned by the misp-modules service are rendered as raw HTML form labels on the workflow module page without output encoding. An attacker who can influence the parameter names reported by the misp-modules service can inject arbitrary HTML or JavaScript that executes in the context of an authenticated MISP user's browser. Preconditions: - The attacker must be able to control or influence parameter names reported by the misp-modules service. - A victim must be authenticated and view the affected workflow module page. Impact: - Execution of arbitrary JavaScript in the victim's browser session. - Potential theft of session tokens, manipulation of the MISP interface, or initiation of unauthorized actions on behalf of the victim. Affected versions: <2.5.48.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2026-112184
Confirmed fixed CVEs
Not specified
Updated in this feed
3 Nov 2026, 15:21 UTC · Revision 1

Source evidence

MISP Workflow Module: Reflected XSS via Unescaped misp-modules Parameter Names in Form Labels

core-osv · Original source

Published 19 Oct 2026, 09:19 UTC

MISP contains a reflected cross-site scripting (XSS) vulnerability in the workflow module interface. Parameter names returned by the misp-modules service are rendered as raw HTML form labels on the workflow module page without output encoding. An attacker who can influence the parameter names reported by the misp-modules service can inject arbitrary HTML or JavaScript that executes in the context of an authenticated MISP user's browser. Preconditions: - The attacker must be able to control or influence parameter names reported by the misp-modules service. - A victim must be authenticated and view the affected workflow module page. Impact: - Execution of arbitrary JavaScript in the victim's browser session. - Potential theft of session tokens, manipulation of the MISP interface, or initiation of unauthorized actions on behalf of the victim. Affected versions: <2.5.48.

osv:CVE-2026-112184
Complete source record
{
  "id": "29c0bc32e89a234477f99e3c12fb4845192f15f9fae0bda96d4f294018903cc5",
  "url": "https://osv.dev/vulnerability/CVE-2026-112184",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "MISP Workflow Module: Reflected XSS via Unescaped misp-modules Parameter Names in Form Labels",
    "summary": "MISP contains a reflected cross-site scripting (XSS) vulnerability in the workflow module interface. Parameter names returned by the misp-modules service are rendered as raw HTML form labels on the workflow module page without output encoding. An attacker who can influence the parameter names reported by the misp-modules service can inject arbitrary HTML or JavaScript that executes in the context of an authenticated MISP user's browser. Preconditions: - The attacker must be able to control or influence parameter names reported by the misp-modules service. - A victim must be authenticated and view the affected workflow module page. Impact: - Execution of arbitrary JavaScript in the victim's browser session. - Potential theft of session tokens, manipulation of the MISP interface, or initiation of unauthorized actions on behalf of the victim. Affected versions: <2.5.48.",
    "evidence": "osv:CVE-2026-112184",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-112184",
      "aliases": [
        "CVE-2026-112184"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/misp/misp",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "63d46c54ccccd646fa352ee74d218f618ccce75b"
                },
                {
                  "fixed": "813a48b2b"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2.5.48"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "range": [
                      {
                        "fixed": "813a48b2b"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v2.5.47",
            "v2.5.46",
            "v2.5.45",
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          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-112184.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:29.726692162Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/112xxx/CVE-2026-112184.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-112184",
        "https://github.com/MISP/MISP/commit/813a48b2b",
        "https://github.com/MISP/MISP"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-79"
        ],
        "cna_assigner": "CIRCL",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/112xxx/CVE-2026-112184.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-112184",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 496774,
  "published_at": "2026-10-19T09:19:45.056+00:00"
}