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CVE-2026-96654

Full vulnerability record from the local CVENow database.

Description

Plex Media Server before 1.43.3.10861 does not correctly neutralize URL values included in 'searchOne,' allowing an attacker to call other plugins' functions and supply their own parameters.

Severity
MEDIUM
CVSS score
6.9 (v4.0)
Vulnerability status
Analyzed
Source identifier
9119a7d8-5eab-497f-8521-727c672e3725
Published
2026-09-23 17:17:23.517000
Last modified
2026-10-21 13:09:37.607000
View original CVE JSON
{
  "id": "CVE-2026-96654",
  "sourceIdentifier": "9119a7d8-5eab-497f-8521-727c672e3725",
  "published": "2026-09-23T17:17:23.517",
  "lastModified": "2026-10-21T13:09:37.607",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Plex Media Server before 1.43.3.10861 does not correctly neutralize URL values included in 'searchOne,' allowing an attacker to call other plugins' functions and supply their own parameters."
    }
  ],
  "affected": [
    {
      "source": "9119a7d8-5eab-497f-8521-727c672e3725",
      "affectedData": [
        {
          "vendor": "Plex",
          "product": "Media Server",
          "defaultStatus": "unknown",
          "versions": [
            {
              "version": "0",
              "lessThan": "1.43.3.10861",
              "versionType": "custom",
              "status": "affected"
            },
            {
              "version": "1.43.3.10861",
              "status": "unaffected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV40": [
      {
        "source": "9119a7d8-5eab-497f-8521-727c672e3725",
        "type": "Secondary",
        "cvssData": {
          "version": "4.0",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "baseScore": 6.9,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "vulnConfidentialityImpact": "LOW",
          "vulnIntegrityImpact": "LOW",
          "vulnAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "subAvailabilityImpact": "NONE",
          "exploitMaturity": "NOT_DEFINED",
          "confidentialityRequirement": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "valueDensity": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "providerUrgency": "NOT_DEFINED"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "source": "9119a7d8-5eab-497f-8521-727c672e3725",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 2.5
      }
    ],
    "ssvcV203": [
      {
        "source": "9119a7d8-5eab-497f-8521-727c672e3725",
        "ssvcData": {
          "timestamp": "2026-10-20T15:58:41.367540Z",
          "id": "CVE-2026-96654",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      },
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-10-20T00:00:00+00:00",
          "id": "CVE-2026-96654",
          "options": [
            {
              "exploitation": "active"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "cisaExploitAdd": "2026-10-20",
  "cisaActionDue": "2026-10-23",
  "cisaRequiredAction": "Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.",
  "cisaVulnerabilityName": "Plex Media Server Improper Neutralization of Encoded URI Schemes in a Web Page Vulnerability",
  "weaknesses": [
    {
      "source": "9119a7d8-5eab-497f-8521-727c672e3725",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-84"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:plex:media_server:*:*:*:*:*:*:*:*",
              "versionEndExcluding": "1.43.3.10861",
              "matchCriteriaId": "4C230270-5EBA-476B-84EE-59764545E0FD"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://forums.plex.tv/t/plex-media-server/30447/711",
      "source": "9119a7d8-5eab-497f-8521-727c672e3725",
      "tags": [
        "Release Notes"
      ]
    },
    {
      "url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-266-01.json",
      "source": "9119a7d8-5eab-497f-8521-727c672e3725",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-96654",
      "source": "9119a7d8-5eab-497f-8521-727c672e3725",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ]
    },
    {
      "url": "https://zmain.info/blog/plex2shell",
      "source": "9119a7d8-5eab-497f-8521-727c672e3725",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-96654",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "tags": [
        "US Government Resource"
      ]
    }
  ]
}