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CVE-2021-4253

Estado: ModificadaMedia (6.1)—

A vulnerability, which was classified as problematic, was found in ctrlo lenio. Affected is an unknown function in the library lib/Lenio.pm of the component Ticket Handler. The manipulation of the argument site_id leads to cross site scripting. It is possible to launch the attack remotely. The name of the patch is 7a1f90bd2a0ce95b8338ec0926902da975ec64d9. It is recommended to apply a patch to fix this issue. VDB-216210 is the identifier assigned to this vulnerability.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Ctrlo — Lenio

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2021-4253",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2021-4253",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-04-14T17:02:10.353923Z"
        }
      }
    ],
    "cvssMetricV31": [
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        "type": "Secondary",
        "source": "cna@vuldb.com",
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          "baseSeverity": "LOW",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N",
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          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
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        "impactScore": 1.4,
        "exploitabilityScore": 2.1
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      {
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        "source": "nvd@nist.gov",
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          "scope": "CHANGED",
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          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
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  "published": "2022-12-18T22:15:10.317",
  "references": [
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      "url": "https://github.com/ctrlo/lenio/commit/7a1f90bd2a0ce95b8338ec0926902da975ec64d9",
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      "tags": [
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        "Third Party Advisory"
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "type": "Secondary",
      "source": "cna@vuldb.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-707"
        }
      ]
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability, which was classified as problematic, was found in ctrlo lenio. Affected is an unknown function in the library lib/Lenio.pm of the component Ticket Handler. The manipulation of the argument site_id leads to cross site scripting. It is possible to launch the attack remotely. The name of the patch is 7a1f90bd2a0ce95b8338ec0926902da975ec64d9. It is recommended to apply a patch to fix this issue. VDB-216210 is the identifier assigned to this vulnerability."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad fue encontrada en ctrlo lenio y clasificada como problemática. Una función desconocida en la librería lib/Lenio.pm del componente Ticket Handler es afectada por esta vulnerabilidad. La manipulación del argumento site_id conduce a Cross-Site Scripting. Es posible lanzar el ataque de forma remota. El nombre del parche es 7a1f90bd2a0ce95b8338ec0926902da975ec64d9. Se recomienda aplicar un parche para solucionar este problema. VDB-216210 es el identificador asignado a esta vulnerabilidad."
    }
  ],
  "lastModified": "2026-06-17T04:19:21.547",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "versionEndExcluding": "2021-02-09"
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  "sourceIdentifier": "cna@vuldb.com"
}