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CVE-2026-23930

Estado: AnalizadaMedia (5.3)—

An unauthenticated user is able to cause disproportionate CPU load on the Frontend webserver by sending specifically crafted requests to the Frontend popup.testtriggerexpr action, leading to potential denial of service.

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)

Zabbix — Zabbix

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2026-23930",
  "cveTags": [],
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          "role": "CISA Coordinator",
          "options": [
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              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-08-18T12:51:07.883071Z"
        }
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    "cvssMetricV31": [
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        "source": "nvd@nist.gov",
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      }
    ],
    "cvssMetricV40": [
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        "type": "Secondary",
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          "Recovery": "NOT_DEFINED",
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          "attackVector": "ADJACENT",
          "baseSeverity": "MEDIUM",
          "valueDensity": "NOT_DEFINED",
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          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED"
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  },
  "affected": [
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      "affectedData": [
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          "repo": "https://git.zabbix.com/",
          "vendor": "Zabbix",
          "modules": [
            "Frontend"
          ],
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              "lessThanOrEqual": "7.0.26"
            },
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              "status": "affected",
              "changes": [
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                }
              ],
              "version": "7.4.0",
              "versionType": "git",
              "lessThanOrEqual": "7.4.10"
            }
          ],
          "defaultStatus": "unknown"
        }
      ]
    }
  ],
  "published": "2026-08-18T13:17:21.303",
  "references": [
    {
      "url": "https://support.zabbix.com/browse/ZBX-28069",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "security@zabbix.com"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security@zabbix.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-405"
        }
      ]
    }
  ],
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    {
      "lang": "en",
      "value": "An unauthenticated user is able to cause disproportionate CPU load on the Frontend webserver by sending specifically crafted requests to the Frontend popup.testtriggerexpr action, leading to potential denial of service."
    }
  ],
  "lastModified": "2026-09-08T15:05:57.843",
  "configurations": [
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          "negate": false,
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}